I put these on as soon as I received them. My mistake was standing on hardwood flooring. In grass or rough surfaces they are fairly comfortable and look awesome.
I love the look of these sandals but they will give you blisters until your feet get used to them. I wore them for a good four hours without getting too tired; so they are reasonably comfortable. Beware they can be slippery on linoleum. Thanks Museum Replicas!
So far these have been excellent. I would advise only using them on dirt or grass surfaces as they slide on modern surfaces. Also, buy some leather strands to use as ties because the pieces they give you are usable, but not that great.