At first my cats were startled, but now they love their cat genie and use it with ease. The cleaning process doesn't even bother them and the guide that came with the genie was very helpful in the transition from the cat litter box to the cat genie. Even when my Cat Genie had an error light, the manual was very helpful in resolving the problem. I didn't even have to call to get help. So worth the money when you map out the cost of litter a year! Will recommend to friends.