I enjoyed Julia Baker's chocolates. I am more of a dark chocolate kind of person, so those are the only ones that I tried. I don't remember the names of all of the chocolates I had, but they were all pretty good. There was one with nuts on the outside and a salted caramel on the inside that was really good, and even the passion fruit one (which I was very suspicious of) turned out to be pretty good.
I would definitely come back while visiting Phoenix.