We visit TOT whenever we visit London. We find the food quality and customer service to be consistently good. The menu is varied & can fit both vegitarians & meat eaters. We ourselves enjoy the set menus.
Our most recent December 2008 dining experience, we have an appetizer tray ( sesame roll, seaweed, & spring roll w duck sauce ) followed by crispy duck served with pancake & plum sauce. Lots of folks seem to order the crispy duck. Then follows spicy chicken ( flavorful w a little heat, but not overpowering ), steamed veggies ( perfectly cooked, crispy and tasty ) and sweet/sour crispy pork ( crunchy with a nice sweet/sour twist ). Portions are definitely ample, food is served promptly and always hot.
Again, I emphasize that the service here has always been prompt and attentive and in our observations, the diners here are happy with their food. I would highly reccomend TOT for anyone hankering Chinese food. It's especially busy on theater nights. Although things look chaotic in the dining room, they have it all under control.
As an aside, I would like to note that one annonymous poster here continues to post 3 separate disparaging reviews of TOT. I readily admit that dining is a subjective experience, subject to aesthetic discrepencies. I hope that folks look closely at who posts here an not at shotgun reviews meant to sink the boat.
Try Top of the Town and come to your own conclusion just as my wife & I have done during our own London visits. I think most folks will enjoy the food.