I have 3 cats and the Cat Genie is wonderful. One of the best things is that there isn't any dust. I had a Littermaid before and it worked ok, but regular litter is so dusty. I am a member of the VIC so I receive regular shipments without shipping charges and I never run out. I do have to order extra Granules, but with the VIC membership I don't have to pay for shipping. Two things that are on the downside is how loud the machine is, so I have to have it on the night mode so it doesn't wake me up. The other issue is that it takes about 30 minutes to run a cycle so with 3 cats it makes it hard when someone needs to use it while it is cleaning. Love this machine!