I've been looking at the Genie for some time, but was put off due to the initial costs. However, after becoming totally sick of dealing the the cat box mess and smell. I've been reading reviews on several sites and over the last several years, it seems that the product has really held up. So, I decided its time! Set up was a breeze! I have two cats. One cat was immediately curious as I was setting it up. I told him "kitty box," and he used it immediately! Once I finished setting up, I tried to introduce the second cat. He was quite scared, especially when I cycled it the first time. On the next cycle, I spent the time talking to him and showing him it was "safe". He was very curious, but cautious! However, now that its been running for over 24 hours, both cats are using it :) Many reviews say its noisey. I have it in the laundryroom, and it does sound very similar to the washer running. Although, it really isn't noisey. I cannot hear it anywhere else in the house. The biggest bonus is that even my boyfriend, who initially told me it was too expensive, agrees that its a pretty cool box!