My Favorite Bag
I acquired on of these early last year and I have to say, it's relegated my Western Mountaineering to 2nd tier. Main reason is comfort! It's plenty warm, but with much more room to move than my other mummy bags. It's not the Most compact bag ever, so I recommend getting a compression stuff sack for it. I now save the WM for only trips where weight and size are a significant issue. Otherwise, the comfort and resulting better sleep I get with this bag, more often than not takes priority.
FYI- I also makes a great comforter at home when the house is a bit cold.