Love the shoe in every way, except I believe the tread life will be minimal if you're wearing them as street shoes.  I've been wearing the shoes for about 30 days, after work and on the weekends.  There is already significant tread wear on the ball of the sole.  The V-shaped tread pattern grips extremely well in the dirt, but certainly won't last on crushed stone or pavement, if your route incorporates these elements in your run.