I was really hoping this shoe was going to work for me.  I run in the low heel drop range (0 - 4 mm).  These shoes were very comfortable and appeared to be durable.  I can't say too much because I only got to run in them about five times before I had to return them.  I'm one of those weird persons where my middle toe does not perfectly confirm with the other toes.  With the design of these shoes, you really have to be careful with this because the design of the front of the shoe is supposed to mimic the curve of your toes.  I know people who love these shoes, so I'm very disappointed that I could not use them.  If you have normal formed toes, give them a try.