Yes Cafe is about the equivalent to California's Tapioca Express. It's a boba shop. Nothing special or worth going out of your way for- but it's convenient because they are open later than the other shops around town.
I will give them one thing though - their food/snacks are delicious! I would recommend the popcorn chicken or calamari. I've yet to try their Taiwanese meals but I've heard good things about them from family and friends.
Tip: They do not accept card if the total is under $10. So make sure you bring cash if you're just stopping in for a drink!