Walked thru Chinatown didn't get to eat. But the Resturant's all look delicious
You must come check this place out! It has the most delicious gourmet chinese restaurants, desserts, and bubble tea cafes! Also, it's very easy to navigate since it's between two subway stations, Leicester and Picadilly Circus. The later it is, the livelier it get in Chinatown. I would recommend you to come here at night and in ther afternoon for lunch if time allows.
It's not really big and it is close to other tourist places such as Leicester Square and Piccadilly Circus
It is probably not as big as the one in San Fransisco, but it is a definitive place to get an authentic Chinese meal, sometimes cheaper than other place, though do not let yourself tempted with the allure of 'eat as much as you like' for £5 marketing ploy! There are other places where you can do this 'safely' but not here, here you might just get stomach ache if you are lucky. But the normal restaurants are pretty good, go for those ones instead. Apart from culinary delight, China Town also is one of the only way to get oriental ingredients, they have a few mini markets over there. During the Chines New Year they also hold some street party and celebration including the Dragon Dance. If you are planning to go there, give me a buzz, I let you know which one to go :)