If you have the money to burn or can get one discounted ... yeah it is a good secondary console.
Right now Bayonetta 2 and Super Mario 3D World are the two best (new) games of this generation so far and Pikmin 3, DKC: Tropical Freeze, and Mario Kart 8 (esp. with the DLC) are all top tier games too.
I enjoy it more than the Wii. I have a PS4, but for now I play the Wii U way more. That will change most likely as things like Uncharted 4 show up on the PS4, but for now it's a good console game wise even if Nintendo made a lot of marketing/design errors with it -- the games themselves are still immensely enjoyable and experiencing Nintendo games in HD brings back that feeling of playing Nintendo games on the Super NES for the first time. Everything is just so much more colorful and polished than the previous gen.
It's like being wrapped in a warm blanket of gaming goodness.
If you grew up with a Nintendo console or can appreciate games outside of the muted-grey space marine motif and just enjoy games regardless of it they're cartoony or trying to be realistic ... you will have a good time with this console.
