So far, great shoes
I bought the Montrail XCR's a few months back. My early impression: I have used them on about 5 runs so far. First, as stated in other posts, they are pretty stiff out of the box. On my last run they started to loosen up (25 miles on shoe). I bought these to run the trails near my house in wet weather. So far I really like them. My feet have stayed totally dry. I run on fairly rocky terrain and the soles provide great protection. Also I like the ankle support they provide. The only drawback so far I see is the weight of the shoe. This is my first pair of burly trail running shoes, previously I ran in a pair of Adidas XCR's which feel much lighter.
To wrap it up I'm a fan, looking forward to more runs with dry feet.