Our girls love the cups. I put in 5 so there would be plenty of room for everyone to drink, although it seems they all like drinking from the same one. I really tried to get our chickens to like the nipples - they seemed like they would be a little cleaner, but they never liked them. The cups I went with have inserts so I can remove them, wash them if needed, and pop them back in. I'm very happy with our water setup. I have discovered that even though it's 5 gallons and it's in the shade all day, I might have to add a frozen water bottle to it in the summer. We've had a few days when the temps were high and the water in the 5-gallon bucket was getting a little warm (not hot, just tepid). I'm hoping that we don't have problems with freezing in the winter, however, I live in middle west GA so we don't often see extremely cold temps in the winter. I'll solve that problem when/if it comes up.