My foot is a bit narrower than average for a 13 and this shoe is very wide on my foot.  Seems more like an E or W than a M.  The length is just a hair longer than average as well which makes for a very loose fit.  I can almost make it up with thicker socks and an insole might do it, its not bad enough that I haven't kept them but it lowers the overall rating I would give them.  Aesthetically they look pretty good, not as nice as the picture but with some wear they will look quite nice.