I am visiting your nice city of Tucson on Thursday...and then Phoenix starting Saturday..
...and I am curious to know what is the best Thai restaurants to visit.
Chanpen on Baseline in Tempe is one of my best bets. Although I make a mean Chili Mint Chicken, Coconut Curry shrimp or chicken and a fantastic Pork Satay with peanut sauce. I don't even come close to their level.