Just as an aside FYI, D+ is now DV-enabled for the GCCWGTV.Fair; it all boils down to your environment and what you have/etc. I have a DV-capable set in my bedroom, so I want DV (I'm currently using a CCwGTV, although sometimes I need to switch to the built in Android TV if I want D+ with DV.) In the main setup downstairs I have a Shield.
I do agree with your "more the merrier" statement. And I do prefer the UI to, say, the Roku. Although if I were picking out something for my parents (seniors, struggle with tech sometimes), I'd go with the Roku, because the interface is dead simple and uncluttered. I could easily see my dad getting lost on the CCwGTV.