If you go when it's quiet, the service is so fast that your head will spin. It is a little slower at busy times like Friday night. On Friday night you may wait up to 45 minutes to be seated at a table. While this is not my idea of authentic Mexican, I do enjoy it. I like that brown gravy that they pour on their tamales and enchiladas. I also like their chunky Mexican guacamole. I am a big fan of Tamales. I also like their Tostaguac. You can typically find coupons for this restaurant in the local coupon thingy that you can pick up around town at the local stores. Typically we go in with the buy one get one coupon and order the combo meal for dinner. The food is not excessively spicy but you can request spicy if you prefer it. They also have a small selection of draft beer. Their staff is super polite and very attentive. Some of them recognize me and know I drink a lot of water when I eat. They make sure to keep my cup full and I love them for that. read more

First off I would like to add that if I could have given this place negative stars I would but unfortunately I cant and secondly I want to add how embarrassed I am that I actually gave this place a shot! Los Rios is terrible! The food is dry and very bland and the service is horrific! To think that some would consider this to be good mexican food blows my mind! It was so bad I went out of my way to make a profile on this website just to let the world know how grotesque it is!!!!! You couldn't pay me to eat here again; in fact if I where starving and homeless and someone offered me food from Los Rios I would refuse it. It's that bad!!!! PLEASE!!! PLEASE!!! NEVER EAT HERE!!! YOU DESERVE BETTER THAN THIS SLOP!!! read more

I'm giving this two stars only because the service was TERRIBLE. They took forever to give my family and I a table (and it wasn't even that busy) and they gave us the absolute worst waitress. Our waitress was a young girl named Stephanie and she was so rude. Very snarky and smart. She got my husband's order wrong and brought my daughter's meal to her cold. She rolled her eyes when I told her to take the meal back and chuckled at the fact my husband asked her to go back to the kitchen and bring him his right order. I mean seriously? Not impressed , at all. I won't be coming back and my meal was terrible. Thumbs down!!! read more

The food was overall simple and I did not really think it was that great. The people were friendly just like any other Mexican Restaurant in Cumming. If people actually knew anything about businesses they would know that the original El Rio has been owned by the same owners for over 22 years. I am good friends with the owner and he has told me they only changed management. The El Rio restaurant formers employees opened up Los Rios with the exact same menu as El Rio and coincidentally a similar name. Call it fair business play? I am unsure why these employees were discarded from but I have not heard good things. read more

Horrible business! I have experienced horrible service three times with Los Rios. While the owner tried making it right the SECOND time (received no messed the first time, no one seemed to care what happened in their store), he didn't respond to me the last time I reached out to him. They are all around rude people. We will no longer come back, considering there is a Mexican restaurant on every corner in Cumming. Not to mention, their half filled bag of chips are usually stale. The salsa has little to no flavor. Their food isn't all that great, but the price is good. I guess you get what you pay for. read more

Major health code violation...the guy serving our food was eating something while serving our table and it wasn't like he was trying to be slick about it he had a wad of food in his mouth and eating with his mouth wide open....I said something about it and I was with a few Mexican friends. ..a girl who worked there said for me not to come back but the others (the Mexicans) could come back because she likes them...smiled and walked off. WOW!!! Discrimination and health codes being broke....heath codes are in place for a reason. I will NEVER eat there again. Oh and I am half native American! !! read more

My family usually orders food from here, but we have decided that we are no longer going to order from this location. The last time we ordered our food over the phone and my dad went to pick it up. When he got home he noticed that they had put the wrong meal in the bag. When he went back to correct it, they told him that it was his fault and that he should have checked before he left. My dad probably should have checked, but that is no way to talk to a customer and they should have had the order right in the first place. This awful customer service has caused them lose our business. read more

I'd give it a 0 rating if I could. This place was terrible. I decided to try it with my friend. We ordered what we usually get at El Rio which is a Speedy B. Our food was really cold and we waited forever to get our order taken. The servers kept looking like they were really busy but there weren't that many people in the little place (maybe about 5 tables). I have never felt like leaving a restaurant so badly. I will never be going back and I don't recommend anyone going back there either. RUN! read more

It took a few times eating here to fully appreciate that there is no better place around. I've had a few trips to Texas, New Mexico, and Arizona and Los Rios has spoiled me on their Mexican food. I find myself comparing "authentic Mexican" to Los Rios and they fail to live up to the bar every time. Los Rios has excellent food (Texas Fajitas or House Burrito are always a great option). Serving size is incredible, this place is exactly what you could want out of a Mexican Restaurant. read more

Always have the best service and food. We usually get the same thing every time we visit but sometimes we switch it up. We never are disappointed. The kids want to come all the time for dinner. This is the best Mexican restaurant in town. Obviously it's great because it's always busy lunch and dinner hours. Go around 2 and you can have a little quietness if that's what you are looking for. Thank you all for working so hard and providing great service and food every visit! read more

I don't think I'll be going back here again. I noticed it was some of the dismissed employees from the El Rio downtown and one of them was very rude to me this time and a previous time. The food was okay, but the service was not as good as I expected it to be. read more

Great food and incredible prices!!! This is one of our favorite mexican spots for a quick bite, its about as close to homemade as your gonna get. If your not looking to spend the normal 20-30$ going for mexican this is the place!! Hope this help! T read more

What a great place to eat! Food is good and service is awesome! We eat here several times a week. If you're looking for a quick meal this place will have your food on the table in minutes. For supper go early because they fill up fast. read more

We had delivery the other night and it was great.. food still hot and delivery guy was very polite, we had steak amd shrimp fajitas and appetizers nacho cheese everything was great definitely will order again when i crave mexican food! read more

It was so good they opened another restaurant.El Rio went to crap after they sold it.The food at Los Rios is made fresh and these guys truly appreciate your business.I have been eating there food for over 20 years. read more

We have eaten there on many occasions. the food has always been great, the service quick and efficient. This holds true even on very busy nights. Would highly recommend Los Rios for American Jalisco food. read more

I've been coming here for years with friends and family! Margaritas are delicious :) Owners are sweet and all of their staff is super friendly - especially Tavo and JJ. read more

Best Mexican food in Cumming best service plenty of parking always crowded friendly staffing service if you love Mexican food check it out at Try County Plaza read more

Giving it two stars since they have a real jerk driving the los Rios food truck. He's at nofo on Wednesdays and the dude is an ahole.