I unfortunately waited too long to return these, but they were definitely too big for me. I even tried heel pads to keep my heels from slipping (I have narrow heels, so sometimes that's all I need), but no dice.

I wound up buying a second pair in 5.5M, which have their own issues. The leather is very stiff across the top of my foot, so they're are not the most comfortable pumps I've ever owned... Hopefully they break in after a few wears and stop digging in so badly there. My heels also slip out when I'm wearing nylons,  even with the smaller size (but since they're a smaller size, I'm not sure if my normal heel grips will fit without pushing my foot forward too much and crunching my toes).  We'll see I guess...

The shoes do look sharp, just maybe not the style for me.