Let me start by saying that I sleep cold... Very cold... Even in the summer. I bought this hoping that that review when it won an award was accurate and truthful. Let me tell you... I love this bag. For synthetic it packs down nicely and its light. I've used this bag in the Green Mountains on the AT in Vermont. There were some nights that dropped below 40 & still stayed warm. For nights over 40 (even by a degree or 2), shorts and tank were fine to sleep in. As of yet, I haven't had to wear base layers to sleep. Besides the warmth factor, some other great features are: the shape of the hood that holds your pillow securely without it sliding around, the center zip that you can always find in the middle of the night and gives you easy access and venting, the material is very soft, and for me at 5'2, I've got plenty of room to move around without feeling constricted. As for durability... I've had it out over about 20 nights (maybe more)... it's been through all the stuff you'd expect it to have gone through and it still looks brand new. I think this bag is gonna have a long life.
I do store it over the winter in the mesh sack that it came with. Even though it isn't down and it is synthetic, I never store it compressed and I always take it out, lay it out and air it out after each trip.
Oh and the weight! The warmth, comfort and features in a synthetic bag at 26oz??! Awesome-sauce!