Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Waste of money!! Great disappointment

This was a great disappointment and a real waste of money. First, the rake is always jammed. We followed instructions and coated it with silicone spray, but it made NO difference. Once the rake gets clogged, dirty litter gets sprayed all over the floor when the unit trys to empty the tray. We tried everything to make this product work. We used 3 types of premium clumping litter, yet end up cleaning the pan by hand frequently each day. The rake needs to be cleaned everyday in order to keep the unit working. The end result is more dirty litter sprayed on the floor and more daily work than our old non-automated (hand cleaned) litter box. I'm cleaning this one today, and putting it on the pile of stuff to be sold at our next garage sell!