There are sooo many coffeehouses in AZ, and Jolta Java is another great one. What I like about it is that they actually serve breakfast items and sandwiches all day long, so you're not limited to the normal muffin or pastry if you get hungry.
Jolta Java is actually pretty quiet too. They don't stay super busy like Starbucks does, but they do well enough throughout the day. It's definitely a more peaceful experience than most coffee shops.
They also have comfy chairs for you to sit on if you want to read while you're there, and the coffee is pretty great too!
My favorite drink is the blended strawberry tropical tea, it's delish!