As a life-long, outdoor adventurer, who routinely ventures out and camps in remote settings, I appreciate good, dependable gear that functions properly and makes my activities safer and more enjoyable. I can honestly say that that after a week of use, I have never been more excited with a piece of equipment than with the EE Accomplice! After using various down sleeping bags and zip together bags for two for several decades, I decided to try a quilt, mainly to save weight. We selected a 20 degree 850 fill Accomplice with weather-resistant stripes, made to our custom specifications. Our first use was in the Trinity Alps at the end of this year's long, cold winter. There was still ice on the adjacent alpine lake and patches of snow on the ground around us. My thermometer read 28 on the coldest morning. My girlfriend was wearing a hoodlum, and I, a knit cap. We were also wearing base layers, and heavy socks. She had on her down jacket. She was cold, and I was not. We decided a temperature upgrade was in order, so I returned my clean quilt and ordered the 10 degree thickness. EE gave me full credit for my returned quilt! We just got through with our 6 day, 6 night backpacking trip in the southern Sierras, where we averaged over 11,500 ft in elevation and climbed Mt Whitney as a day hike. On the last night/morning we caught the southern end of the first Sierra snow storm of the season with high wind gusts and blowing snow. Temps got down to under 28 degrees. The 10 degree quilt performed flawlessly and we were both comfortable wearing clothes similar to those previously used. I tried snapping and draw-stringing my neck opening shut, but I did not like the confinement, so I loosely placed my down jacket under the quilt and on my chest. This worked superbly in keeping out drafts on my chest. In the morning, it was extremely difficult to leave this warm comfort and get moving in the harsh conditions outside the tent! Not only does this two-person sleep system save us about half the normal weight of using two separate bags, it is also much more comfortable to sleep under and adaptable to a wider range of outside temperatures and different warmth demands of the individual sleepers. It is possible to both snuggle with your partner for more warmth, or unhook one or both the elastic straps on the edge of the quilt to let out the right amount of excess heat. Oh, and did I mention this USA- made sleep system (with separate hoodlums) costs less than half of two comparable temp rated, USA-made, premium down sleeping bags?! It's a great deal! Thank you EE for making our outdoor experiences much more enjoyable!