This is one of my favourite tea cafes. The owner is extremely kind and hospitable. He's also very knowledgeable about different kinds of tea, namely pu-erh. In your first visit, he will give you a mini tea consultation and walk you through different kinds of tea to sample, as well as check your pulse and tongue to see what kind of problems you may have and what kind of tea may be best suited to your needs. Everyone here seems to be very happy. I often come here to study and always order their milk tea with ginger honey.
To the comment that said the owner was rude because he asked the commenter to leave if they weren't ordering anything, this isn't a library. The commenter said herself that she got carried away with her project discussion and forgot to order. It isn't the owner's fault since other customers who ordered something may want to use the tables. The owner has to run a business. And no I'm not affiliated with the owner or Crimson Teas in any way, I'm just trying to be fair. The customer is not always right.