What is Webroot? & Why are my friends leaving Norton?

Hey Guys, I have been with Peter Norton "FOREVER".  I have helped countless friends sign up & install Symantec's programs. I have been one of Nortons greatest fans!! But recently some friends have come to me with issues and due to those issues have installed a product called "WEBROOT"  I REALLY would like to get YOUR feedback on this "WEBROOT"

Thanks, A loyal subscriber, Caz Magee