I use this bag, and love it. Not just the weight factor, mine weighs 476g without stuff sack. I've been down to about 0 degrees Celcius with a thermarest ridgerest inside and a very thin EVA pad on the outside of my bivy. YMMV of course. I also use a short Prolite inside, which is the key to trapping warmth and keeping you stable. I'm not a big fella, but have enough room to roll around with either of the mats inside.
I like the simplicity, and the construction is first rate.
If you can get one, it is a classic.
I can't believe they have 110!!