This shoe is absolutely phenomenal. When looking for a shoe which enables forefoot landing and the small differential sought by so many runners currently there is nothing better on the market currently. Add in the relatively cheap cost and it's a no-brainer purchase.
The traction on these shoes is amazing, along with the light weight which enables incredibly light foot placement and agility on very technical trails. I've ran in these shoes on trails exclusively since receiving them two weeks ago, and I must say, I forgot they were on my feet at all after the first mile. New Balance definitely hit this niche of the market with these shoes. As Anton Krupicka said, they're perfect right out of the box!
Also, I've completed a few road runs on them, and while not as comfortable as my Stem Footwear/FiveFingers, they're NOT uncomfortable by any means. Running on the road to get to the trails should be absolutely doable (unlike my MT10's which are unbearable on the road after a few miles). GET THESE SHOES!