The **Littermaid LME9000 Elite Mega Self Cleaning Litter Box with Ionic Air Cleaner **is a okay product. I purchased this product about 6 months ago, at first it worked great but as time went on the machine started to get louder and louder. After trying several different cat litter brands to use with this machine I finally found one brand that didn't turn to clay. I like the fact that it automatically scoops waste out of the cat box and is less work then cleaning out a regular cat litter pan. I also save on purchasing cat litter each month because i don't have to buy it as often. And with the Ionic Air Cleaner the cat litter box smells alot better than if you were using a regular cat litter pan. My cat also seems to enjoy fresh clean litter every time he uses it. Also my cat enjoys watching the machine scoop out the waste, he tries to pounce at it. Which is another benifit of this machine, it will stop and retract if something gets in it's way.