Pros: Plastic so OK to use with ACV, fairly inexpensive
Cons: No handle, hard to thread base to container
I already have a large metal waterer for my small flock but wanted a plastic one so that I could put apple cider vinegar in the water. I purchased this 1 gallon waterer expressly for that purpose.
I put it up on a thick block of wood to keep it from being on the ground and that eliminates poop and dirt in the water. No one has tried to perch on the top of it yet but I guess they could if they wanted to. I only have 3 chickens so this is good for days before I need to refill.
Cons: It cannot be hung. Sometimes I have to try a few times before the red base will thread onto the top. It doesn't have a handle so you have to fill it and carry it upside down to the coop and then flip it over before setting it down.
I have no regrets as it serves the purpose I bought it for and was inexpensive. I did have to buy the two pieces separately, the estimated price of $13. is for both pieces combined. I don't have a problem carrying it and I didn't need to hang it so I'm okay with those aspects.
Back on topic though, I've used this waterer too when I first started out. For very few birds it's okay but there are much better alternatives in plastic waterers for small flocks. The cons you listed are indeed very spot on. It's near impossible to thread back together which makes filling such a small waterer a massive chore. In addition to this and the inability to hang it - I had birds perching on it and crapping all over it and ultimately finally tossed it when the plastic base cracked because of a standard bird trying to perch on it (it was sitting on a cinderblock at the time). It's a waste of money in the long run I've found, even for a small flock.