I have flat foot and now have to wear arch supporting sandals. This was the only alternative that was not TOO ugly. So far so good. I had to get rid of all of my flat sandals so I won't have foot pains. The rainbow sandals are super pricey, so I do hope that they do really last. As for the comfort level I can certainly walk in them all day and night. The straps are a little tight, so I am hoping that I am able to break them in soon. They are not great fashion statement shoes but definitely adds comfort to walking.