This is a small cafe run by a very nice couple. You can find all sorts of things to enjoy including home-style Taiwanese food (it's all vegetarian), #icecream, #bubble-tea, and smoothies.
If you have been waiting for a Taiwanese-style tea cafe in the Overlake area, then your wait is over. Opened recently, Tapioca Express serves food for snacking and tea drinks, including #bubble-tea, of course.