We were actually one of the first people get a CatGenie when they first came out, and 5 years later, we still consider it one of the best purchases we ever made. Ever. We are on our second CatGenie (we upgraded when the 120 came out), and love the "cat activation" mode. I love being able to go on vacation and not need to impose on anyone to come over and change litter! Their customer service is top notch (not that we've needed to ever call that often). Love love love love love this catbox!