We recently went from a Keurig to the Ninja DualBrew Pro.  The Pro heats the water and starts brewing in ¼ the time of our old coffee maker.  That's the plus for him.  I like that it can do hot water through a different way so you don't get residue coffee flavor in your soup or tea. I also like cold coffee, so it's great that it brews over ice.Those are the pluses for me.  
We're so pleased!!