I'm asking this sincerely. I have just found out about this place from a coworker thirty minutes ago, and was shocked that I'd never seen it mentioned on the LA Chowhound board.
Is there a reason that nobody is talking about this place?
At first glance it seems like a tea hound's paradise, with a treasure trove of info on the website alone. (It's striking me as the sort of Sweet Maria's of tea.) Dr. Tea hands out these beautiful glossy cards with specific info about the tea you've purchased, what temperature and how long to brew it at, along with a brief history of the tea and tasting notes.
Here's the info about their shop on Pico.