So far it works great.  It really is a very "pretty" litter box and fits well in my small condo.  I would buy it again.  The only thing is that there are panels for charcoal filters but this unit did NOT come with any to start with.  For the price I paid a couple of filters included at the start would have been nice. Kind of cheap to make you go back out and buy them when you want to start using your litter box right away.