Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Problem with cartridge assembly

I purchased this unit (534-70SS) 15 months ago, and the first problem occured about 10 months after I purchased it. The water would be constantly dripping slowly when the faucet was turned off, and as days went by the water dripped more and more. I called them, and they sent me the cartridge assembly, but after replacing it, the handle wouldn't stay up when I turned the water on at slow flow setting. I called again, and they were nice enough to send me a brand new retail packaged unit without shipping cost to me. I replaced it, and it worked for the past 5 months, and now the handle again wouldn't stay up at low flow setting. I guess I have to live with it until another problem surfaced. It came with life time warranty, but what good is it if I have to replce the cartridge assembly (or the whole thing) every few months.