Sparkly Euro Peep's review of Circus

The restaurant is not marked from the outside – hidden, discrete entrance, as long as you know it is number 27, you will find it, however.
Enter and there is a short corridor with a cloakroom and reservation check desk. When you enter the restaurant, you will feel like you are entering a 70s disco era – very cool, lots of disco balls everywhere and sparkle. Decoration is great and adds to the ambience – check out the toilets, quite matrix-esque.
Food is unusual to what you tend to find in London – I would call it Southern American with a twist. Good variety and probably a change to what you eat normally at an “American” -cuisined place. Very tasty and good sized portions. I rcmnd the side sauces. Food came very quickly.
Service was smiley and friendly but slow – took a long time to take any orders (drinks, food, desert) and then took 30 mins to bring the bill, which is fine if you're sitting enjoying yourself, but a pain if you want to leave. Just keep on the waiting staff's case about bringing it.
At hourly intervals after a certain time, the central long table becomes Cirque-du-Solei-esque and when we there, there was a contortionist and then a snake-charmer woman, which is a bit not-so-much for me when mixed with food. If you're not into this, request to NOT be on the central long table when booking. Restaurant seemed to turn into a bar after about 9.30pm with a younger crowd (<25). Would rcmnd for an ambient experience and good food.
Good for a date or with a group of friends.