North Phoenix is kind of a pain to drive to, but it's worth it to get tea at Souvia. They're not really set up as a tea room - seating is minimal and they have no snacks or wifi - but they have a great selection and good service, and it's good for reading quietly or carry out. The staff know about tea, and they're set up with three water pots for teas that need different temperatures to steep. Best place to get tea in Phoenix, no contest.