We thought it was...well...not great, but more than OK. It's more the kind of food we like to eat--we're definitely not burger and chicken strips and fries kind of folks. We eat thai or chinese food at least once a week at home, and I cook it just as often.
I think you could classify it as in the same quality category as park food in general. You don't get the "best" burgers at pecos bills or cosmic rays either, you know? We will definitely go back here though, we even popped in to get some chinese hot sauce on our way to Adventureland to get Samosas a few times...(shhh)
I was bummed they took the pad thai off the menu though. I think they could do better in this restaurant, and hope Disney keeps it open long enough to find it's groove. It's a nice change of pace from the usual counter service fare in the MK.