Love these shoes, they are just as beautiful as I was hoping they would be! For me they ran a little big and I sized up based on the recommendations, but then ended up having to make multiple returns to get the right size since they aren't carried in store at the Nordstroms by me. I ended up with half a size smaller than what i normally wear and they fit perfect.
I find that Manolos have a better fit than some other designers and I bought the Hangisi in five colors. When paired with a dress of the same color, it really makes a statement. For size, I suggest going 1/2 size bigger.