I bought this in 2016 and really have mastered making great coldbrew at home.  People really need to remember not all coffee will turn out good as coldbrew and I suggest you find a cold brew drink at your nearest coffee shop before you start.  When getting coffee make sure it is coarsely ground, pouring water in will be a smooth process.  I do use spring water for cold brew and let mine steep for exactly 24 hours.  I do like my cold brew strong and cut it with half and half with very little ice and no water...I KNOW I AM STRANGE.  This machine is a lot of fun to use and easy to clean and I never put any parts or the cold brew maker in the dishwasher...everything gets hand washed with warm soapy water.