Pros: Slightly cheaper than rivals
Cons: Leaks, flimsy bottom warps causing more leaks, breaks
We bought six of these because they were about five dollars cheaper than the 3.5 gal waterers we had been using. There are several design flaws.
1) The top will turn and lock two ways instead of the usual one direction. The problem is that only one way is "open" and lets water out. You need to be careful you turn it the correct way or your birds will have a full waterer, but none in the base to drink.
2) The top tabs holding the "metal handle" they are so proud of break very easily and you are then left with no handle which makes moving them after filling very hard.
3) The bottoms are flimsy and don't seal well. With time they warp in the sun which causes them to leak even worse.
Most of them were out of service within 6 months, I think a couple lasted a year. We still have some of the Harris Farms 3.5 gallon waterers we got before then in service.