Enlightened Equipment manufactures top quality, light weight gear. I am highly impressed with their quilts. I recently purchased my second quilt from them. This time I got the Revelation Apex 20 degree. I already have the Revelation 20 degree in 950 fill Down. My Down quilt has already proven to be true to spec in warmth and light as a feather. There is no reason to not carry it on every backpack trip. My reasoning was to use the Revelation Apex as an underquilt for my hammock as well as a quilt when ground sleeping. I had already tested the Revelation's functionality as an underquilt. All you need is shock cord and cord locks. For me, the Revelation worked well because I ordered it long and I have more length and better wrap coverage for my feet. I am very impressed with the Apex insulation. I've used it in the hammock as well as with my Xtherm sleeping pad. I've been to 18 degrees with minimal clothing and been very warm. I'm usually a cold sleeper and these quilts perform at least to their spec and then some. I'm eager to test them in lower temps to determine what limits that I can be comfortable. If you think the Down is pricey, do not hesitate to buy the Apex. If you go with the Down, hold it tight, the wind could blow it away. It honestly doesn't feel as heavy as they spec. There is a minimal weight penalty with the Apex, but you will gladly trade that for the warmth you get over other sleeping bags. I think that paying once for quality gear is always better. The Revelation in Down or Apex is a smart purchase so don't put it off. You will not regret it.