I was buying gallons of filtered water each week for my coffeemaker because we have extremely hard water and got tired of that and grabbed this water filter instead. It’s amazing! The slim design fits perfectly in my fridge so I can have cold water to drink or for my coffeemaker. It filters pretty quickly and you can definitely tell there’s a difference in flavor between my tap water and the filtered water. Plus, I love that it holds so much. It completely fills my Ninja coffeemaker and still has more water left to drink throughout the day.