Pros: There are NO pros because it doesn't work properly!!!
Cons: This product ruined the water tank.
It is discusting and annoying to clean the unit, cleaning is worse than just scooping the litter yiourself, Unit constantly malfunctions and breaks down, Unit keeps turning on if a human walks infront of the litter box, do not use automatic cat setting, the little granules go everywhere, it is a waste of money because it will eventually blow the water tank, I had no water for a whole week, had to buy a new water tank and get a plummer to install it, the machine can ruin the water tank which costs over $350 too. This product ruined the water tank, which costs $350. I had to buy a new water tank, then get a plummer to install it.