I'm the guy that never writes reviews. That said, this is an obvious exception and needs to be done. I procrastinated about buying one of these for years in spite of the fact my best friend with two large cats owned one and continually sang its praises. I would read all the reviews out there, many negative and just couldn't bring myself to take a chance even though I really wanted a better answer than manually scooping a cat box every day. I would share the negative comments with my friend who would immediately tell me "if mine ever failed, I'd buy another one immediately". Still I procrastinated. Finally, one day I decided to bite the bullet and give this thing a try. Now all I can say is I was a fool to have waited so long! This has worked flawlessly, without issue for nearly 3 1/2 years. I set up its cycles and maintenance schedule according to the manufacturers recommendations and have not had any, not one problem with it. I have never had to call their support for anything and can say unequivocally, and without hesitation, if anything were to happen to this machine that couldn't be repaired, I'd have another one shipped overnight!
In a world where so much or what we buy is meant to be disposable, regardless of cost, this is something made very well, does what it says it will do, and does it without fail. It is worth every penny I paid and as long as there is even one cat in my house, I will have one of these units.