I love these shoes.  I ordered 1/2 size up for extra toe room & another 1/2 size up because they seem to run small.  That said, I have a wide foot & bunions.  For people with a medium width foot, you could probably do with just the 1/2 size up.  This is my second pair.  I use them for trail running and running on graveled foot paths. They are so pretty until the first run!  They get muddy fast and don't clean up well.  They are much better on the trail than many mesh shoes because the mesh has a thin protective piece of fabric over it. Unfortunately, that piece of fabric also traps the dirt under it.  I've tried everything & can't get them clean.  I tried throwing my old pair in the washer, but all that did was shift the trapped dirt to the sides.

My first pair only lasted about 350-400 miles plus some time on the machines at the gym. The frame of the shoe started giving out before the sole showed lots of wear.  The soles are much more durable than they look.