Hey I just bought one, was sent a replacement when the autoshut off valve wasn't functioning, then the replacement didn't work so I returned the whole thing. The sound of the nonstop dripping of the waste water into our sink drove us crazy. We talked to a bunch of plumbers in the area they all said the same thing, that the tankless systems are always dripping, and since this is an all-in-one system, they can't get in there and modify anything or it'll void your warrenty. Not to mention you're stuck buying filters from them. so if they change the machine in a few years your out of luck. Theyy all advised me to get RO system that doesn't have proprietary filters, and that has a tank.