Instruct: Classify a given Amazon review as either positive or negative.
Query: Broke after 3 months.

It worked really well for what it cost. But after about 3 months, I was having the same diaphragm issues as everyone else and it stopped working entirely about a week after the first signs of degrading. I only got this because I needed something relatively cheap fast.Nothing should break this fast though, no matter how cheap. The only use for a pump like this is to temporarily provide aeration while you get another pump that will actually last.