If I had to describe the decor it'd be an asian hipster IKEA catalogue, but in a good way. It has a nice atmosphere for just hanging out with friends or relaxing on your own.
I ordered a green tea matcha slush with red bean which was very good in my opinion. Not too icy and had a strong matcha flavor which I find is always lacking with other BBT places. Although they ran out of tapioca at the time which was disappointing. My friend ordered the mango slush which was also very good. Not too sweet and tasted like real mangos. The speciality drinks only come in one size and are fairly large so keep that in mind. It is a bit pricey too since most of the drinks are $5-6
I think I'd choose One Hour for sitting in and having BBT but I'd probably pick ChaTime for takeout.