Just finished 25+ days on the Long Trail in Vermont with this bag. I have the regular sized bag paired with the Big Agnes 72" Clearview Mummy Pad. I'm a little over 6'. I purchased this bag as my ultralight summer bag because of the weight.

This bag performed really well. The late June and early July weather saw temps dip down in the low 40's and upper 30's in the mountains. This bag, for the most part, was comfortable through most of those temps. I say most because I was cold further into my trip because my calorie intake was low, not because of the bag. On those occasions, wearing some smartwool microweight baselayers and my rain gear warmed me up plenty inside this bag.

The bag zipped up snug around my face, no need to pull in the drawcords. There is just enough length that I was comfortable (able to sneak my arm up to use as a pillow, could point my toes all the way out comfortably). It continued to loft well day after day, and I had no problems keeping it dry in a dry sack.

My only beef is as Rusty noted. I weighed my regular length bag at 1lb. 4oz. Had I known it would have weight significantly more than advertised, it may have changed my purchasing decision. However, being that the bag feels warmer than 45, I let it slide somewhat. Still doesn't give me faith for trusting MH weights.

This bag is great if you want to keep things super light and compact, but also value quality and performance. This bag is great, being that it is smaller than a Nalgene bottle and super light. I have also found that the temperature rating is slightly conservative by about 5-10 degrees. I have even slept in it when the temp dropped in the low 20's, wearing only base layers and a Mont Bell ultralight down jacket inside.

My scale weighed this bag at 20 ounces for the short. I got mine at a crazy deal secondhand so I am not upset. Otherwise it seems to be a good bag