I have been using these shoes for a while and run the trails around my neighborhood with them a lot.  I also used these in a 12mi Tough Mudder this past weekend as well.  They were comfortable throughout the run.  They also gave me exceptional traction.  I was blowing by people going uphill and even on relatively flat surfaces that others were sliding on I had no problem.  Even after being thigh-deep in mud with these shoes they came clean with just a little hosing off.  In addition they very light.  Added bonus they are manufactured (not made) in the USA.  This means the materials are imported and someone in the states puts the shoe together.  It isn't ideal, but it is better than most trial shoes you will find.  If you are into Warrior Dash, Tough Mudder, or anything of the like I would suggest picking up a pairs of these.  The five-toe shoes can't hold a candle to these shoes.