After reading all the great reviews, I purchased Klogs USA Women's Austin Open Back Clog. Perhaps I was expecting too much, but I am simply unimpressed with the clogs. I like to include both pros and cons. The only "pro" I can identify is that they are leather which I prefer to "vegan" materials.  The "con" list is longer:
1) Inadequate arch support.
2) Black sole marks up the floor.
3) Uncomfortable.
4) Not particularly attractive--I will accept "just ok" in appearance if shoes are comfortable, but when they are uncomfortable and unattractive, I am unimpressed.
5) They squeak loudly.

I do not recommend this clog at all. If I could send them back I would. It's difficult to give shoes ordered online a fair trial period without rendering them unreturnable.  Mine will probably go to Goodwill.