I thought that this place was called "Volcano Cafe", so that was kind of confusing finding it on Yelp. But anyways...
I have been here a few times and I haven't had a bad experience, so I'm not sure why it only gets 3 and 1/2 stars. I love taro and I haven't had one poorly made taro smoothie. Their boba tastes great as well. I have also tried honey dew, cantaloupe, and an avocado smoothie. Those smoothies use fruit, not powder, so they are a little more expensive than the drinks that do use powder. I haven't tried much of their food, I've only had some chicken bites (I can't remember what they are called) but my friends and I enjoyed them.
The only reason I give them four stars is that they have a minimum amount for using a card. If you're like me, I don't like to carry cash, and the fact that I have to buy extra just to use my card is a little irritating. They also have a punch card, so get one if you're a regular!