I personally enjoyed the Wii U. I still use it today since a ton of my favorite Zelda games could be played on it, the HD remakes of Twilight Princess and Wind Waker, Ocarina of Time on the virtual console etc. etc. Though I totally understand why the Wii U didn't sell well, there wasn't much of a selling point, it was basically trying to be the Nintendo Switch. still cool if you wanted to play any old Wii games on it if you didn't have a Wii. I liked the controller as well but god damn did it get covered in finger prints quickly.
edit: oh god i forgot about miiverse