Haven't taken it hiking yet, this is just my impression from toying with it indoors.
It's cheap, it's light, it's small for a synthetic.
I bought this for a 6 day summer hike where I can assume I'll get the bag wet a few nights. It comes with a stuff sack, not a compression or storage bag. The stuff sack is small enough, and it's nice that the stuff sack isn't rock hard like a compression bag because it should fit into your pack better. The bag feels solid, has a nice glow in the dark zipper handle, and feels warm considering how thin it is.
The only gripe I would have is the supposed 6'11 user height. I'm 6'4 and I would say I max it out. You may be able to fit someone 6'11 in there but they would be stretching the bag and you wouldn't be able to use the hood pull cords. It is a warm weather bag so you probably won't need to be pulling the hood close around your face but even at 6'4 it's a little tricky to get enough slack in the bag that you can pull the bag close around your mouth.
For 90 bucks it seems like a pretty solid purchase.