Although customers are mostly Chinese, this place is actually closer to a Western restaurant.
They have a reasonably wide selection, but I definitely recommend the meat: steaks are really excellent.
Not everybody in the staff speaks English, but this is not a real problem, since the menu is bilingual and you can point to your choice on the list.
The price is more than reasonable, considering the location and the quality of the food.
It may be a little hard to find: use the YongAnli subway station (Exit C) as a landmark. The restaurant is located in the relatively narrow street crossing Jianguomenwai Da Jie.
Note: I could not use my AmEx tonight. I don't know if this happening with all non-Chinese AmEx cards, or it was due to some problem with mine. The other card that I had (a non-Chinese Visa) worked ok.