We own all of the gaming consoles, but just got this one today. I would not recommend it just to be having it if it weren't a 5 player game. But since we have a family of 5, it's nice to have a game we can all play together instead of having to wait out a turn round-robin.
We played Super Mario Bros. most of the afternoon. One player holds the WiiU unit and builds platforms and things using the hand-held console. The other 4 players are up on the big screen as normal. I did not use the console. I can't imagine building platforms is fun. I prefer the falling and dying. LOL
We also played Sonic All-Stars Racing. In this version you can see the 5th player on the track with you, but of course, not on the big screen. They still use the hand-held screen for racing this time, instead of building platforms.
We also got Skylanders Giants, which we already have with a different gaming console, so I don't know why we got it again, but we did. And we got NintendoLand, both of which we haven't yet played.
So I would say, if you want a 5 player game, go for it; if not and money is tight, I'd not get it just to be getting it. I really prefer the other gaming console controls over the wii remote.