Works very well!
I love this waterer. The chickens can't step in it, nor poo in it, and it gives them fresh water when they want. It doesn't work during winter freezing, so I don't recommend it in COLD WINTER regions, but I'm glad I have this. I just hook up a hose and hang it from a tree branch or hook. I even hook it up to my rain-barrel that comes off the coop, and don't need to hook it up to the faucet. (I live in Oregon, and drain it before severe frosts, and use a 2 gallon rubber bucket for those few days of severe weather).