I Think the concept of a secondary screen was done better back with the Gamecube and GBA, at least in the game that took the best advantage of it.
The gamepad was more comfortable than It had any right to be, but I only used it for creating levels in Mario Maker. For all other games i played I used a pro-controller instead.
I feel like the gimmick did not fly and without that unique lure what is left is a less powerful unit than the competition at a price that was about a gamepad to high.