Single joycon is barely usable, but the Wiimote was terrible for sideways holding.

Its shape was clearly never intended for it, and the d-pad was absolutely awful, one of the worst I’ve used.

The d-pad worked as buttons (which was how most games used it, in vertical mode), but for movement it was very stiff and almost impossible to get diagonals. For a console that featured virtual console heavily and needed a lot of classic controls, that was very bad design.