Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great filter

Purchased it to supply water to refrigerator and overall very happy. We also us it for the coffee pot to prevent scale build-up (keurig is very susceptible to plugging due to high TDS). TDS went from 180ppm to 15ppm and the water tastes great. Have never run low on water, even during parties.A few things to remember about this system (and RO in general) before you purchase it:- The system includes filters and storage tank which takes up quiet a lot of room under the sink- All RO systems will have a waste water stream which has to be hooked to the drain, or recycled to the hot water lines- This kit includes plumbing parts which may work for 90% of the installations but we had to add some parts to complete the installation- If you are using it with a refrigerator plan on purchasing a booster pump with this kit. Without the booster ice cubes will be small and water will just trickle out of the water dispenser.