I really like these shoes for trail running/hiking.  I do about 8 miles/day on relatively level surfaces that are a mix of dirt, tree roots and small-medium size rocks.  These shoes don't pick up rocks, are light in weight, and provide pretty good stability on the trail.  I don't find the arch support intrusive, but it's definitely there.  The cons for me are the sizing and the laces.  I normally wear an 8.5M, but went down a half size on the recommendation of some reviewers that these run large.  I also have a narrow heel, so often shoes rub my heels or bottoms of ankles.  These shoes fit great in the heel, but my longest toe on each foot rubs just a bit on the end of the shoe.  If I went up a half size, the shoes would be too big.  The laces are fine and stay tight, but you have to tuck the end loop in and it doesn't tend to stay in, but flops out periodically.  Otherwise, these are great shoes.

Update 3 months later-- I downgraded the shoes to a two star for two reasons.  First, and most important, is that I am experiencing arch pain in both feet with these shoes, and sometimes pain radiating up the inside bone of my lower leg, whether I run or walk.  Secondly, because I sized down one size, my toes hit the end of the shoe with each foot strike.  Not much, but enough that I'm having toenail problems.  I would not buy these shoes again.