I originally ordered these in a 7, my size everywhere, but had to switch to a 7.5.  The 7.5s fit me very well, but the toe box is quite narrow. I easily fixed that by putting on some wool socks and using a hair dryer on them to stretch them out - it wasn't a factor of the shoe not fitting, because an 8 would have been too big, certainly.
I would say if you are normally between two sizes, size up for this one.