I have been using this bag for about 2 1/2 years and it has served me well during this time. Most of my trips have been weekend trips instead of long, continued use. I have used the bag down to 35 degrees, and I was decently warm wearing my thermals to bed. However, I am a warm sleeper so a cool sleeper might be a bit cold right at the 30 degree rating. The zipper goes almost to the foot box so it makes for good ventilation for warmer nights. It does not have a true footbox vent, though.
The fit is nice and loose without being too far from the mummy shape. I don't feel constrained as I do in most mummy bags - I am a very restless sleeper. I have the petite version - I am 5'1 so no length issues there. I can't attest to how it would fit a taller person. It's really easy to get in and out with the full zip.
The bag's shell has some moisture resistance but it will wet out pretty quickly if water accumulates at any corner of the tent or seeps in as condensation and the bag does not dry in a hurry. The bag is down so once the down gets wet, it will lose much of its warmth factor. If you are spending a lot of time in a wet climate, some of the new drydown options might be better for you. The bag compresses down really well, especially with a compression sack. I can get mine down to about the size of a football, maybe a bit smaller. It takes a little time to puff back up and might need a little coaxing - but I pack mine down REALLY tightly.
The zipper doesn't seem to have a catching problem and everything works the way it should. It has a neck baffle that helps keep cold air out of the body of the sleeping bag, but it does not cinch around your face. It has a little sleeve attached to the bag so you can stuff a fleece or a camp pillow in it and it stays put. I love it because I can just throw a bunch of random clothes in it to use as a pillow and they stay together.
The bag has lasted 2 1/2 years and hasn't gotten any rips or tears, and the zipper has held out well. Remember that Big Agnes bags do not have insulation on the bottom - just a sleeve for a sleeping pad. It helps cut down on weight and keeps your pad in place if you toss and turn at night. It is a discontinued bag but can be found in a lot of clearance sales, so it's a great bag for someone looking for a good deal.
- Very light
- Pillow sleeve
- Does not repel water
- Needs a sleeping pad
- Cold sleepers may be chilly