Yum.
I come here often, and always get a smoothie or slush. The mango slush is better than any smoothie I've ever had. You can really taste that they use fresh fruit (for the flavors that aren't in season, I think they use frozen fruit - but at least it's not flavored syrup, right?)
The area looks very clean to me, and I haven't had any issues with finding a little "extra" in my drink (like, for instance, a fly.)
The prices are awesome compared to other places that sell boba tea. Here, a Large is $4.80, and I've paid $5 for a medium elsewhere.
Yes, the customer service isn't always 100%. I've gotten strange looks, or have been told, "that's weird," when asking for what I want.
But the taste keeps me coming back.