These buckets are very strong, sturdy and high quality. I use them in my chicken coop and chicken run as waterers. The square shape is far more convenient and space-saving than round buckets. They were easy to drill holes & sand down for the water cups. While I did not dock a star for it, I hate the lids. If you will need to remove the lid a lot, then these buckets might frustrate you.After securing the lid on the first bucket, I simply could not get it off. I had to use a hammer claw to pry the lid off to avoid cutting my hand. A possible solution is to fashion some twine underneath all four corners of the lid and use them to pull the lids up. I decided that I'd rather not struggle every time I need to refill the hens' water. I simply used some extra 12x12 concrete step-stones, that I had lying around, to hold the lids on ($2 each at any hardware store). The step stones are too heavy for the hens to remove, so I put the lid on the bucket without snapping it shut, then I place the step stone on top. The step stones also allow the chickens to explore on top of the bucket without me having to clean poop off the lid every other day. A win-win situation for me. I'll be buying 3-6 more.