I ran in these shoes for one season and did several races in them (trail runs and Spartans).  I purchased them looking for a trail shoe alternative to Inov8 because inov8's are notoriously difficult to size correctly and i have not been impressed with their durability thus far.  Altar's description is pretty accurate.  I almost returned them for a half size smaller because the wider toes box made them feel a bit on the loose side however, after a handful of runs I decided the fit was right it was simply a width I was not used to so my advice is to trust the sizing guide.  Pros:  Very comfortable and stable.  For 'barefoot' type shoes they have plenty of padding and never made my feet or knees sore.  I cannot recall ever rolling an ankle while wearing these which I attribute to the wide sole.  The extended heel is an excellent feature and saved me from several falls.  Cons: The tread is not very aggressive.... they work well for dirt roads and moderate trails but don't have quite enough bite on loose or wet terrain.  They are not a great option for OCR races.....a rope burned all the way through the side walls of mine after just one ascent/decent of a 15ft rope and I had to throw them away.  I would recommend these strongly for someone wanting a shoe for runs and races with mixed terrain.  The zero drop construction combined with a wide padded sole makes them ideal for long, moderate trail runs.  I would not recommend them to anyone wanting a shoe for OCR's, steep trails or off trail running.