I like this place, a lot. However, the reason it's not 4 stars but 3, is because, I don't think its burger is all that good, and that's terrible for a burger joint which came over here all the way from the US!
If you like gadgety things, this place is great. It has the coke freestyle machine, which is widely available in the US but this machine is the first time I've seen one in the UK. What is a Coke freestyle machine, you cry? Well, it's a machine where you have lots of options to choose from, lots of cola drinks and flavours to choose from, and you can mix and match everything to your heart's desire, from Fanta to diet coke and vanilla coke and Raspberry this...to create either the best or worst drink ever. It's on tap by the way, so we are one step closer to matching the obesity crisis in the US!
You get free peanuts while you wait, this is not new, they have them in GBK too but I think they must go through more crates here than in GBK. Their peanuts are nice and fresh, and makes waiting that much less painful.
On the topic of waiting, you really shouldn't be waiting in the queue outside. The smart person would download the Five Guys UK app and order at least 10 minutes in advance (paying in advance), then casually stroll past the queue and go to the collection desk and query about your takeaway.
OK, the moment of truth is the food. There are bazillion and one choices about your burger. You can add sauces, tomatoes, lettuce etc to your heart's content, or leave them out. The portions are US portions so I would recommend that you practise saying the word "little" rather than normal here if you have a small (aka UK) stomach.
I gave this review 3 stars because the hype outlived the burger. It came in a foil wrap and by the time my party of 5 got our order, the burger/the bread seems to have shrunk a little under the heat. It was average tasting, but the feeling of eating a shrunk burger spoilt the experience.
I cannot fault their cajun fries however, this is the best bit about this place other than the Coke Freestyle machine. The fries are very very addictive, although sometimes they are on the dry side. I have taken to ordering fries here and getting my burger from elsewhere at lunch.
One last thing about their PR skills, I can say it was top notch. I actually queued for 1.5 hours here on the day of opening and then because my lunch time was over I had to give up. Their app was jammed by 1pm and you could not pre-order for takeaway using their mobile app.
It was frustrating standing in a queue that wasn't moving whilst people who pre-ordered at around 12pm keep walking straight in. I wrote an email to complain and they offered us a free meal, literally a limitless tab, which of course, was a great gesture and a great response to their faulty opening date on 4 July 2013.
Ok one last regret about this place, they do not have the secret menu like in the US, I wanted cheese fries! The Five Guys lady in the queue on the first day agreed with me, she also wanted cheese fries! Alas, they do not have it.