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    Starbucks

    3.2 (212 reviews)
    InexpensiveCoffee & Tea
    Open 4:30 am - 9:00 pm
    Updated over 3 months ago

    Order Starbucks Takeout or Delivery

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    STARBUCKS ATMOSPHERE

    What's the vibe?
    Outdoor seating
    Good for working
    Dogs allowed

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    Recommended Reviews - Starbucks

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    Big Game J.

    Happy Friday! My Barista is better than yours She always prepares my 6:00am Americano the best.

    Ed. L.

    5/5 Perfect Spot Warm hospitality beats everything else Visited on a Saturday around 2 PM and was greeted by the sweetest Filipino cashier whose name I, unfortunately, forgot--but their kindness left a lasting impression. We ordered a black coffee with hazelnut and tried the new summer berry refresher. While the drinks themselves were just average in taste, the real standout was the service. The cashier's friendliness felt genuine, not forced, and created a naturally welcoming vibe that made the whole experience feel special. It's places like this that remind you--it's not always about the product, but the people behind the counter that keep you coming back.

    Jessica P.

    My pumpkin cream chai is literally milk. I love paying $7 for my drink to be made incorrectly.

    Ray M.

    Very clean and well organized location. Service was very good and employees are very friendly and efficient. My dragon fruit refresher was perfect Ann's my butter croissant was very tasty and fresh This was a positive visit and experience

    Bacon, sausage & egg wrap, grande Caffé Americano
    Emil C.

    This Starbucks is located in the Diamond Hills Plaza Shopping Center with the main entrance at Sugarpine Pl off of Diamond Bar Blvd. The shopping center is lower than the main road so not all of the stores are visible from the street. They have a drive thru lane, but I normally opt for parking my car and getting my food and drink inside. The staff are usually efficient, friendly, and will welcome you when you enter. It's really convenient to order ahead on their mobile app. More often than not, my order is ready when I get there. My normal order is their bacon, sausage & egg wrap and a Caffé Americano. The quality is on par for any Starbucks that I've visited.

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    9 years ago

    Just stopped off at this Starbucks to pick up a gift card but left empty handed because WORST SERVICE E V E R ! ! ! So Frustrating! Sad.

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    14 years ago

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    15 years ago

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    12 years ago

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    16 years ago

    service is friendly...it's odd that on a cold winter night it's colder in the store than outside

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    19 years ago

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    9 years ago

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    Page 6 of 6

    Ask the Community - Starbucks

    If you're constantly out of bantam bagels, isn't it a good idea to stock more?

    They Should..! Lol You Gotta Talked To The Manager.. :D

    View All 2 Questions

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    Outpost Coffee

    Outpost Coffee

    4.4
    (205 reviews)
    1.8 mi
    $
    Locally owned & operated
    Family-owned & operated

    Visited this place for the first time recently and I'll definitely be back (: tried the strawberry…read morematcha (it's a bit more on the green tea matcha side, not super sweet) and a regular croffle (I could eat a million of these- soooo good!) This team runs so smoothly and efficiently, I didn't wait long and my order didn't seem rushed through. Seating & dining area was neat, tidy and a great vibe overall

    7/24/2026 4 1/2…read moreStars First time here. Came here early afternoon. It was not busy with no lines, but the cafe's seats were nearly filled. FLAT WHITE It wasn't bad. Slightly sour, but fruity coffee. Overall, I enjoyed it. Good mouthfeel too. Good temperature, it wasn't too hot nor luke warm. MANGO MATCHA At first taste, it tasted more like guava. But it was indeed mango. But a fake mango flavor. The mango flavor was there, but could not taste the matcha. It wasn't bad, but I had better mango matchas elsewhere. CUSTOMER SERVICE It was okay. Not bad, but not great. Staff could smile more than just stare at you. Even say "Hello" or "Welcome" when you walk in the coffee shop. LOCATION Located in a small strip mall at Golden Springs Plaza. Parking is medium-sized for the amount of businesses here. I had no issues finding parking in front of the coffee shop, although more and more parking spots were being taken. AMBIANCE + SEATS The ambiance was relaxing. No loud music. Lots of people coming in and working on their laptops. Five small tables for two in the center. Along the wall there were bar seats for 19-20 people. There's a long communal table in the center for seats for 4-5 people. At the front and to the side, there were 3 tables for two. Outdoor tables for two right outside the cafe. Bathroom is outside of the cafe and you have to enter the other part of the building with a bathroom code to unlock. Will I visit again? Maybe if I'm in the area. But I'm in no rush to come back.

    Photos
    Winter Menu! Ube-Ube (left), Outpost Brulee (right)
    Winter Menu! Ube-Ube (left), Outpost Brulee (right)
    Regular hot latte
    Regular hot latte
    Outpost Coffee

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    Margin Cafe Coffee Roasters

    Margin Cafe Coffee Roasters

    4.5
    (300 reviews)
    2.3 mi
    $$

    I went to Margin Roasters on a Sunday at around 10:30 AM. Looking for a good study spot with good…read morecoffee, pastries, and WiFi. A few of these expectations were met. For the pastries, it looked like a lot of the ones I was hoping from browsing online were not available. I ended up getting the biscoff cheesecake. It was on the sweeter side but it was very good. For the drink, I ended up getting the banana latte. Been on a streak of getting that lately so wanted to compare with other stores. I didn't get a lot of banana in the taste. At least it had an espresso shot for the caffeine fix and did not taste like the artificial banana. Nothing special there and stand out. For the interior, they had a few seating they primarily accommodated a few groups of four and two. I was able to grab a bench seat that had an outlet. However, there wasn't enough space for my laptop and the items I ordered. WiFi was available but it had a 90 minute limit. The store had a moderate noise level and stayed busy throughout the time that I was there. The service on the order was quick and they do bring it out to you. The store also has their own house espresso which was a medium dark roast. American Express is accepted as a payment option here. Overall, it was a decent work spot. If I come back, I'd prefer to try another drink and hope other pastries are available. Would recommend the biscoff cheesecake for those that want something sweet and the house coffee beans for those that like medium roasts.

    I came here specifically because for the Biscoff latte. I was surprised that they only offered it…read morehot, but it was good nonetheless. They smeared Biscoff spread on the cup and used just enough syrup so that I could taste the cookie butter but not to the point where it was overly sweet. In fact, I would argue that it wasn't that sweet at all and the espresso was a lot stronger. There were a few cookie crumbs at the bottom too so I'm not sure if they incorporated it in the syrup or if it just sank to the bottom by the time I got my drink. I also tried the hot horchata latte but it seemed more like a regular latte sprinkled with cinnamon powder because there didn't seem to be any syrup. I loved the vibes on the rainy Monday I visited and a lot of people were in there working or studying, since there were outlets against the wall. The workers were nice and approachable, and the drinks came out quickly.

    Photos
    Cold brew
    Cold brew
    Margin Cafe Coffee Roasters
    Margin Cafe Coffee Roasters

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    ChaHalo

    ChaHalo

    4.4
    (299 reviews)
    4.6 mi
    $$

    Really like this place since it opened, the teas taste fresh and natural with no artificial flavor…read more I usually order a Jasmine Milk Tea but they also have a rare Puerh Milk Tea! The space inside isn't that big but ceilings are high and there are usually enough seats to hang out for a little. Clean restroom available as well. Parking is easy outside. Favorite tea shop in RH!

    Drinks are great but I'm knocking down a star due to customer service. I've been here several times…read moreand the staff are extremely rude. The people at the pickup area don't acknowledge you at all. No hello, no thank you, nothing. They just stare at you and give attitude without saying anything. Chang an fresh lychee oolong milk tea - this is a new drink that has bits of lychee and jelly in it. There is a slight floral osmanthus taste that makes this drink really refreshing on a hot day. They are very stingy on the jelly though. I only got a few pieces. Ordered this in 30% sugar and less ice and it was pretty sweet. Tasted like 70% sweet. Osmanthus oolong milk tea - if you like drinking perfume this is for you. It's not my cup of tea. The osmanthus is very strong. Dancong oolong milk tea and rock oolong milk tea - I'm bunching these together because honestly I don't know whats the difference between the two. One tastes slightly stronger than the other but I can't remember which is which. In terms of sugar levels, I've mostly gotten 70% for all drinks due to it being the recommended level, but it is usually a bit too sweet for my liking. I've tried getting a lesser sugar level, but the drink ended tasting extremely watered down.

    Photos
    Signature Drink: ChaHalo Black Milk Tea Frappé
    Signature Drink: ChaHalo Black Milk Tea Frappé
    Cup with detailed label
    Cup with detailed label
    Two Jasmine Milk Tea

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    Two Jasmine Milk Tea

    Starbucks - coffee - Updated July 2026

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