If you are someone who likes good coffee, and enjoy the trendy hipster atmosphere, Cartel Coffee is the best place in the Phoenix area. Their big store off Mill and University smells of roasting coffee beans, they have baristas that are truly artists of coffee making.
They have some of the best espresso I have ever had, and I have never had a bad customer service experience. They aren't over the top friendly like those Brothers from Amsterdam (hint, hint) but if the coffee isn't to my liking they have always fixed it without giving me any grief or the typical eye roll. Whenever I have a friend or business colleague that knows their coffee, I always bring them to Cartel.
The atmosphere is very welcoming at all of their locations. Each store has a specific unique theme to it, which gives each store their own personality. To me, this is the best coffee in Phoenix.