I've read a couple reviews from people complaining that this is not a true "ultralight" bag because it has a full zip and built in pillow etc... All true, but the "extra" features make the bag more usable, even if it is and ounce or two heavier. I'm a tall guy (6'3") and the fit is good in the long. The pillow was frankly nice to have and the draw strings for the draft collar and the hole were easy to operate from inside the bag in the dark. 30 degrees is a bit generous, but 40 with wind was no problem. Storage sack and stuff sack are also top notch in quality. No feathers leaking after 10 days of use.