I feel like Keung Kee is trapped in time. It has an enormous menu (about 260 items not including the secret ones on the wall in Chinese) that is split between the classic Cantonese fare and the westernized Chinese food of the 1960's and on.
It's right in the heart of Chinatown and when we got there, it was packed with locals rather than tourists. The classic Canto fare was pretty good (snow pea shoots, crispy chicken, fish maw soup) but the westernized fare was not so great (tomato shrimp, fried rice, etc.).
Prices are reasonable and service is on par with your average Chinatown restaurant. Place is also relatively clean which is a plus.