Ok I have had this pair for about a year so I think I can say how it holds up. I wear this almost every week maybe every two to three days as I have bought them with the intention of wearing them to work. I saw that they were ideal for by water. This is where it gets iffy.
They are waterproof in the sense that because I work at a pool, they get wet and dry quickly, when I take them off. Once off the the sole itself dries in record time but the outer lining of the shoe doesn't. so at times that is a bit uncomfortable having this wet feeling against your heel.
I live a rainy sort of place so I must say I live in a little bit of fear with these shoes. I cannot, I repeat cannot wear these when it is rainy. As the sole of the the shoe is made of rubber it very quickly wears down and then, it is down hill from there. I can't tell you how many times I have slipped and almost feel with these shoes, even on semi rough surfaces beneath my feet.
So in the end it is a very comfy shoe I would wear if I have a office job, leave it below my desk every afternoon and put back on my heels and head home.