We bought and installed this unit to replace another model about 6 weeks ago.  We love it!  It is so quiet we cannot hear it and were checking on it to make sure it was running!  The red light on the floor is the indicator...as we learned.  Since we have an open floor plan, the noise was a huge concern.  It is flexible for stemware, tableware and cleans great!  Installation was a challenge and required a longer water supply line and some effort to organize the electric connections which required connecting a pigtail to its included PVC electric box.  Patience pays off.