I've purchased a few shoes from this company for my PF, and I've found it is a hit or miss with the sizing. They aren't that cute, but they are comfortable. The insert doesn't quite sit exactly where the flip flops fit, and the flip flops are great for the PF.
My PF is getting better, a lot better, because I've been diligent with wearing the support. I probably wouldn't buy them again, I'd choose a different style.

update: 4/15/13
I'm up to my 4th pair. I started to like the fit, especially for the winter. I searched for them and found them 1/2 the price through various other websites. but you can't be choosy with color. I am not, I use them for my long walks with my dog. They give good support. What I found with them is that you should order a slightly smaller size .. maybe 1/2 size smaller, and the fit will be better than the sandal/flip flop. They are good, but not durable. You really are paying for the insert. Search and you will find them offered in odd colors for lower prices.