These dumplings will haunt my dreams. They may be the first really good Chinese food I've had in Phoenix (other than the place up on Bell, which is a haul).
They're definitely fried potstickers, not actual bao (steamed buns), but very, very good fried potstickers, with a juicy pork-shrimp filling (be cautious on the first bite -- they squirt) and a nicely fried-but-not-too-greasy exterior.
If you have doubts about being upsold to try the iced tea, swallow them. The tea is incredible. The tea falls like gentle rain from heaven upon your palate.
Service is also completely excellent -- they are up-front about food taking some prep time and make an effort to treat every customer well.
So the food's excellent... be aware that in Phoenix-land, "food truck" and "cheap" really don't intersect unless you've found a taco truck from before the hipster food truck craze. I was a little surprised to pay $8 for just 5 potstickers... and then found other Yelpers bemoaning paying $7 for 6. They're still really amazing potstickers, so I'd do it again.