I will be honest- the day I got them I put them on and was very skeptical about their comfort. The shoes felt so tight, but decided to give them a "good" test run. So the first day i wore them i went out for about 12 miles. They actually "molded" or adapted to my foot as the run progressed. By the end of the run I was amazed at how good they felt. Took them out a few days later for a 15 mile run. I ended up getting lost and had to run the last three miles on a road. I really expected my feet to be in a lot of pain the next day from the road portion but they weren't. I like the shoe a lot and I would recommend it and I have to my hardcore trail running friends.
I have a wide foot and they seem "stiff" when you first start running with them but it was great on wet rock, mountains, and hills. Oh and my shoes dried out fast without the fiber shrinking which was a definite plus.