Think of all the time you'll spend scrubbing toothpaste off that thing.
You thought your cat loved lounging in your bathroom sink before? You'll never get him out of there now!
What do you mean there's no room for a dishwasher? No one ever needs to get under the sink. Look at it this way, if it drains directly INTO the dishwasher it will never clog!
Hypnotic swirling, can't stop faucet, must keep watching. Like a cat flushing a toilet.