This bag delivers! It is extremely lightweight and packs down to take up less space than my fleece pullover. As a 3-season bag, comfort is enhanced by using a good sleeping pad and a lightweight liner. I've only used the bag on a couple of outings so far (late spring), but I anticipate needing to add a fleece liner when I'm on the AT next fall.
This review was written in the old system and had content requirements that are different than reviews written today.