There's not much to say about Blizz, except that they offer what they say they offer (froyo and smoothies), albeit it at a bit of a higher price than I'm used to. I ended up going with the acai berry smoothie, which was pretty much what I expected, albeit a bit steep at an $8 starting price (and nearly an additional $1 for any boosters). It was okay, if a little bit on the bland side, and the protein powder seemed pretty weak relative to other smoothies I've had that usually have that boost.
The service was fine and quick, but if you are looking for something new or unique, Blizz is just your generic (albeit overpriced) smoothie and yogurt joint. There has to be a Pinkberry (or something similar) somewhere else on the Strip that would be better.