I have eaten out numerous times in PF Changs China Bistro and have liked most things on their menu. I went in Legacy of China with the same expectations but it turned out to be a great disappointment. We ordered Ma po tofu and Mushroom curry. Both were horrible. Even though we specifically asked how they prepared it, there was nothing remotely Chinese or Thai in their preparation style. It's a disappointment to see Indianised recipes. If authentic food is on your mind, you better try elsewhere.
Ambience-wise, it is quite good. And as anywhere else, nothing in the world can compare with Indian hospitality and service. The food was expensive for sure. We went there for taste and did not find any.