When she began opening up restaurants to compete with P.F. Chang's (so the rumor goes), it was a real reason to go, especially dinner hour. Prices were really competative and food was good. Now a few years later you might as well go to Chang's; you certainly will feel like you are paying for it. There's no reason for a honey beef dish (deep-fried beef and sauce - that's it!) to be $13. Yes it tasted good and yes they were quick, but I'll bet if you did some reasearch and took a few chances you'd find something similar in Mesa/Tempe/Chandler for half that or less. Maybe even S. Scottsdale...
Lunch and happy-hour will be the best options. It still tastes great, you just feel like you are getting what you pay for.