Funny you should mention it, I just bought one, just got it in today. Problem I have with it is, the recycled fabric used on the thing doesn't compress very well; the thing takes up almost as much space as my 20 degree REI 750 fill bag. I'm really trying to pare my gear volume down for a very small volume pack for summer (Newt) so I'm actually more volume conscious than weight. I didn't really have a problem with the 20 oz weight of the golite (wasn't thrilled about it, but accepted it for the price), but the compressed volume just doesn't appear it's going to cut it.
I'm going to be sending the UL1+ back, because of the reasons above, but also because I bought from another vendor and wasn't aware of the Golite 40% coupon code (doh!).
I appreciate the advice though...