" Then there’s iRobot’s Roomba automated vacuum. It has been around for a while and became a punchline in YouTube videos featuring cats, dogs, kids, and turtles chasing, riding, or otherwise abusing the thing. But it is also a perfect example of a product that works well and satisfies a basic need — keeping your house clean 24 hours a day so you do not have to worry about messes. Customers love the Roomba. When you go to its Amazon product page, one of the first reviews is headlined, “I am in love!” That is the kind of enthusiasm and unbridled passion any company should be looking to engender. "

― Brian de Haaff , Lovability: How to Build a Business That People Love and Be Happy Doing It