I purchased these pumps for a business casual dinner and while the length was right, the shoes did not fit.
1) The Ankle Strap. The ankle strap was loose. And while it was fairly easy to add a couple of extre holes, the heel area was too loose which caused the pump to flop off the foot; it was similar to wearing flip flops. Even if one were to place a silicone pad in this area, the shoes are still large in the heel well which pushed the foot more forward in the shoe.
2) Slipping Forward. The next problem was based on the large heel, the foot would slip forward pushing your toes out of the shoe which is a little unattractive. I tried to use a silicone pad so my ball of my feet wouldnt move...it didn't work at all.

So overall, while they are beautiful pumps, the pumps were not worn for this occasion.