I ordered size 8-1/2 but should have ordered a 9. I usually wear size 8.  The 8-1/2 is wearable but bumps the top of my toes so is not really good for walking for a long time. In addition, the sole slips a bit after walking awhile - like I have to readjust to make it fit right.  Sadly I paid $36 for the black ones -  I did order size 9 in purple and red for $15!!! and they are much better and don't slip. There were no black shoes in my size (9) to order so I am still wearing the black one occasionally. I did get compliments when I wore the purple shoes last weekend and ladies wanted to know where I got them.
Long story short - I don't think they are worth $36 but if you can get them on sale its worth it.