Product review (5 stars): the best, I tell you, the best
Wish I could have found the cheaper version, which was out of stock. Can barely here this baby running.
Parts that came with it were metal so I had to get a plumber to install and an election to drop a line under the sink and install the button. So that was 200 then 100 extra. but the water now is warm within 25 seconds... I also have the remote button in the cabinet... We also have a a relatively large house 3000 SQ.F with change and even  on the 2.nd floor the hot water is available within 30 seconds. I would strongly recommend you install it professionaly.  LOVE IT