Another point is that on a whole, western food is better in HK and chinese food is better in Guangzhou. I rarely go for chinese food in HK because I can better food for a fraction of the price in Guangzhou.
There is a Vietnamese restaurant called Tiger Prawn (Guangming mall, Beijing Lu) that is quite impressive.
The problem in China is that if you dont book 5*, then its very hard to tell if the beds are western style (firm but bouncy) or Chinese style (hard as a rock).
Most westerners get aches and pains from sleeping on wooden boards
so its a bit of a hit and miss when you rent budget hotels.
The few that I've recommended on this thread are all have western style beds (box, springs, firm, bouncy etc)
Ha ha, the bed I slept in was so hard that my bones dug into the mattress, however, I like a hard bed and the duvet, pillows, linen was pretty plush for the standard. After hiking all day followed by a killer of a massage, the second night I slept like a log. In fact, almost overslept past check out time.
I would read the reviews on TripAdvisor. Look at who writes them (nationality ) to get a feel for likely background. (Ie Chinese people won't notice noise but most westerners will). Ignore the best and worst few and look for general trends