Rating: 4 / 5
If you're big or thrash in the night, this is a good bag for consideration.
The Horse Thief requires an insulated sleeping pad that slips into the sleeve on the back. On the other hand, you could also use it in warmer weather without the pad.
Weighing in at 1.7 lbs (for the long version), the Horse Thief provides significant room inside, 72" at the sholders and 69" at your hips. I really think you could get 2 small people in this bag if you had to. It uses 725 fill, which gives a good balance between weight, rating and price. It has a #8 zipper you can actually find and yank, and it has a reasonably water resistant cover nylon shell. It packs up nicely, and for me, the 35F rating is reasonable, but I wouldn't want to use it without a liner or wearing long underwear in 20 - 30 degree weather.
Relatively light weight for the large size, and a reasonable price, consider this bag if you typically use an insulated pad, or like to toss and turn a lot.