Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointed

I have been using PUR faucet mount filters for many years, but that is coming to an end. There is a design flaw in the newest version of this thing and it is very disappointing because the filtered water is great. The last three units I used cracked near the top of the cartridge holder. When that happens, there is an explosion of water that sprays everywhere, and your filter is ruined. My most recent unit ruptured before I had even finished my second filter cartridge. In the old days, these units lasted for years and numerous filter cartridges.So I am going to try an under-the-sink system. Anybody need an extra PUR filter cartridge?