This shoe has Greaaat shape, it's really stylish.  I love it.  I purchased the yellow pair and can hardly wait for it to warm up in Ohio.
I think this shoe is true to size.  I wear a 7 and ordered a 7.  Sometime with an unconstructed flat, I find that I need to up it 1/2 size.  This pair, although, slim and sleek, do have defined form. FUN! REALLY FUN!