I haven't been yet; just another thing on my bucket list. I have some dear friends who have been
everywhere; one of the perks of not having children!
They went to mainland China and hated the food, and while the husband is "white bread" American, the wife liked the Chinese food in Hong Kong a lot, so I don't know why the difference.
I do like Chinese food if it's reasonably authentic, which means you have to go to area "Chinatowns". Get even a few miles away into "white" neighborhoods and they pawn off the most appalling glop on the unsuspecting customers.
I realize this is politically incorrect, but I don't trust the kitchens of the Chinese restaurants even here in the U.S. I don't know if they pay off the inspectors or if they temporarily clean them up after citations and then go back to their old ways, but I would eat in them much more frequently if I weren't worried about the filth back there in the kitchens.
Anyway, when I do overcome the "shkeev" or "yuck" factor, I particularly like the dim sum. I do skip the chicken feet, however.