I love my IBIS WB. It is soft, lightweight, comfortable, takes up little space and WARM. I can also bend my knees and twist around without feeling constricted. Prior to purchase I made a comparative study of the features of this bag, in particular the welded seams, and found that it costs a few hundred dollars more in other brands, so value for money for my needs. This bag is also coated with a waterproof barrier that minimizes one of the weaknesses of a down sleeping bag - moisture. Partnered with my equally adored and not-regretted-for-a-moment-purchase of two years, the Downmat7 sleeping mat, it ramps up the warmth of the sleeping bag by 3-5 degreees C, so I can close my eyes and feel that I'm at home in my own bed. Bliss.