I bought my first one on the advice of my dentist 9 months ago. It lasted only 8 months before it wouldn't turn on. At my recent dental exam my teeth and gums were much better. If it doesn't last longer than the first one I will look for a similar one made by a different company!
I bought this water Pick on the recommendation of my dentist with the thought " ya, just another product" but I am completely happy how easy it is to use and with the results when I use it.
I love my water pink unit. It is compact enough to sit on my pedestal sink. My only complaint is I notice sometimes the solution leaks from the bottom of the unit. Otherwise a great product.