A solid 3 stars and for the price I paid for it a good buy. The blanket is rated at 40 degres F and I used it as a supplemental cover to my 20 degree down bag when camping in Utah at 15 degrees and it got the job done. That being said it is not the end all and be all of blankets.
Cons: I found that the travel soft insulation, snugpak's proprietary "high loft" fill slid around in the baffles and did not reach out the edges of the blanket all the way around. Also, I found packing this blanket to be more difficult than other reviews led me to believe. It is very slick and had a tendency to pop or slip out when I rolled it up and tried to stuff it in the bag. Finally, for a 40 degree cover it is quite heavy.
On the up-side, while it is heavy, the material is supposed to be antibacterial, antimicrobial, (not sure what the difference is between these two) windproof and water resistant and does seems like it will stand up to abuse. I will continue to use it to see.
Bottom-line opinion. For the price you could pick one up, throw it in your vehicle or BOB and always have a tough back-up blanket. However for If you are hiking, and have the money to afford it, I would suggest a dry-down or equivalent down comforter with a lower temperature rating.