I like that it allows you to customize your website as much or little so as possible for users who are not web developers.
It also provides great support if something goes wrong with code/the server when running multiple websites (like we do). The only thing i dislike about genticcs cms its still in beta stage but from what ive seen they seem pretty solid. We use this software mostly just to have one dashboard of all our sites instead of having them spread out over different programs which was causing us alot of confusion at times trying to pull up info on each site separately.