The only brand I'll buy.
I bought this bag after using the 0 degree synthetic bag this winter. The bag is so comfortable, water resistant, and packs down pretty small. I have spent ~70 nights in this bag over the course of this summer, and I don't want to sleep in anything else. The stuff sack is about as long as my fore-arm and as big around as a football, without any compression, and at just over two pounds its light enough for me. I would recommend this to absolutely anyone.