I received this as a gift. At first it worked great. Coffee came out hot every time and tasted great. Was quicker when I wanted only one cup or two it was perfect use. Better than making an entire pot and wasting left overs! I descaled it every other month and ran a mix of vinegar & hot water through it weekly. I used it everyday several times a day. It was great to be able to have a different flavor with every cup I had. Or to make coffee then tea then hot cocoa. After a year It started getting loud when it made the drinks. And would sputter for a lack of a better word. Splashing water everywhere. It wouldn't fill the cup all the way. I descaled it twice then ran a vinegar water mix through it. When I did that there was a lot of blackish stuff that looked like mold. We took apart the machine and inside the machine was mold. Even though I descaled it and used vinegar on a regular basis. I think the water sitting in it is what gets gross. I would never had known it was in there had I not ran clear fluid through it! Very disappointed!!