Saw this yesterday and was pretty impressed. I didn't have all that high of expectations going into it, but I like westerns so I figured I'd give it a go. I thought it was very well acted, well shot, the stunts were pretty good, and the music was fantastic. My only complaints is that the plot was a bit odd and the character development didn't make the most sense (especially at the very end), but I liked it a lot.
Also seems like it was more popular than the theaters expected. I saw it at a Saturday afternoon matinee in a normally not-very-busy theater, and they had it stuck in one of the smallest of their fifteen screens. But the theater was probably 2/3 full, the biggest showing I think I've ever seen at a matinee at this theater. Audience response seemed pretty positive.