meh. I've tried it, but it doesn't rate on my list of restaurants. I'd prefer that they don't call themselves a Chinese restaurant, because I actually like Chinese food. And PF Chang's isn't really a Chinese restaurant. More like a place serving Americanized food inspired by Chinese cuisine.
The earlier poster who compared it to Olive Garden hit the nail on the head.
However.
There is a PF Chang's in Sunnyvale, CA, whose redeeming characteristic is that for dessert they have local cherry pies. C.J. Olson's cherry pies, perfectly warmed and served with a dollop of ice cream. I'll go to PF Chang's and skip dinner, to get a slice of cherry pie.
(As a bonus, by skipping dinner I also get to skip the part where the waiter -- rarely of an Asian cultural background -- gets to [has to?] deliver a welcoming monologue that includes explaining how soy sauce and hot sauce can spice up Chinese food. The good part is that I'm Chinese.)