This is definitely the best pad thai I've had in Arizona, hands down. I've had pad thai throughout Phoenix and Tucson probably 8 times in the past 3 months and found myself consistently disappointed. I just landed at Phoenix Airport and was starving. It just so happened that Chanpen Thai Cuisine was the closest Thai restaurant- thank goodness. Because I was there on a Monday during lunch hours, I got a free soup, egg roll, and wonton chips, all very delicious. There were probably 4 other parties aside from me yet my food came out within 6-8 minutes- impressive. On a scale of 1-5 for spiciness, I got a 3 and was very pleased. I always feel like I'm playing Goldilocks and the three bears when it comes to my heat, but this was absolutely perfect. The best part of the pad thai had to be the chewiness. I just can't say enough about it. I recommend this restaurant to anyone who is craving authentic Thai food!