Haven't weighed it, but Exped on their site lists the quilt alone weight as 31 oz/880 grams. Here is the link: http://www.exped.com/exped/web/exped_homepage_na.nsf/b43popup1/BBB3810830F309D0C1257782002B912F?Opendocument
My wife and i used this Sat. night with a low of 39 degrees. I was wearing a thin, linen-cotton button up long sleeve shirt with a t-shirt on top, shorts, silk baselayer bottoms (which i put over the shorts), and a thinnish wool-acrylic beanie and i was plenty warm.
I quite like the quilt so far. I know you can get better quality and lighter quilts that are also warmer, but these are so much more money. If i had a lot more spending money, i would probably have gone with a Zpacks quilt.
For really cold temps (not something i experience much here in VA), i will combine it with EE's 40 degree RevelationX quilt and my wife with a 30 degree Sierra Designs dri down bag. Granted, that is a lot of weight though and all together cost as much as one 20 degree Zpacks double quilt at much more weight, but i like the flexibility of the system.
For cold weather alone, i will use my homemade weird hybrid quilt which has a layer of 2.5 oz climashield apex on the bottom and a mix of Angora rabbit fur and 550 grey duck down/feather blend on the top, non quilted. Haven't weighed it or tested it in significantly cold weather yet.