Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Money well spent.

After messing with the conventional litter box for a month, I decided that the millennias of inventors and great advancements must have yielded a better solution. The Robot seems to be it. With the exception of the cats chewing threw the flimsy out-of-the-box cord that comes with the unit (I don't see why the $20 "cat proof" cord isn't just standard), the Robot has been virtually 'hands-free'. It has also cut back on our litter purchases, and also makes for an interesting topic of conversation with our friends. The two cats don't seem to mind it either, although were a little spooked at first.