Wore these shoes in a river that had large boulders, small rocks and lots of sand.  These shoes performed really well - I was definitely surprised.  They drained well and dried relatively quickly

Pros: Drains well, comfortable to wear in the water and the walk to/from the river, dried well, easy on and off.  Machine washable, because they get dirty
Cons: I would not hike in these shoes (but, that's not to be expected for $15).  They get dirty - the webbing sucks up dirt getting out of the river.

Overall, I'm very happy with my purchase.  Just a thought for others, when you think about what shoe size to order - consider that you won't be wearing socks (I ordered my normal shoe size, ignoring that socks add 1/2 a size).