Excellent, Roomy Bag
The most comfortable mummy bag I've ever owned. I have pretty wide shoulders and didn't feel restricted at all in this bag. I also love the bag flexing wider at the feet -- great idea. I'll normally switch between back and side sleeping during the night and I was able to do that easily in this bag.
I used it in overnight temperatures ranging upper 40s to mid-60s. In the mid-60s the bag got a little to warm although not to excess. The upper 40s it was very nice. I think the bag would be comfortable temperature-wise into the low 40s.
The one issue is the zipper doesn't go all the way to the end of the bag. This made it hard to get my feet outside the bag at upper temperatures.
The bag is constructed well. The zippers didn't get caught and zipped easily. The bag fabric is light with a nice feel. Down puffed up nicely as well. I was a bit skeptical at first of a synthetic bottom layer and down for the upper layer. But, it actually worked extremely well.