Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not yet sure

This robot can spoil you! My siamese is a "squirter" but he squats nicely in this robot (I honestly don't have the faintest idea why this is so -- maybe he likes the "cave"-like litter box). He's extremely interested in what goes on inside the robot when it goes through the cleaning cycle and he's hopped in a few times so I'm grateful the designers thought of installing sensors to stop the "tumbling" process.There have been a few instances when the robot did not start the cleaning cycle even though there were no interruptions. I've had it for about 3 months now and so far it worked well.I use a LOT less litter than before with a regular scoop-type box.