I like them and my back and knees don't hurt after a 9 or more shift! But
I do have some issues.... The backs are a little low so they move up and down when walking with that I can't run in them if needed.... Also with that issue I have to war long socks, short one fall cause of the rubbing. And I have flat feet so the ball of my foot is wide and these shoes fit but there some kinda tight on my toes! I can't wear thick sock at all with these, so I had to go find thin long socks so I can wear them...
But in all I love the fact my back and knees don't hurt and my feet are that soar (other then my little toes)