Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Easy to use, but inconvenient for large cats

Just fill up the bottle, screw it into the base upside down, and turn over. It didn't spill any water, which surprised me. Easy to rinse out, and I think it's dishwasher safe.[edited by me] It says this is for cats and small dogs. The dish is about as big around as a soda can, and right next to the bottle. My cat has a big head so it's inconvenient -- he doesn't like to use it.This product still gets 5 stars but I hope they make a bigger one =-)