So far I've mostly been using it in console mode. It's clearly not as powerful as a regular home console, but unlike the Wii U, it has a slick and responsive OS devoid of bloat.
The new "joycons" are surprisingly nice to hold and filled with cool hardware. HD rumble is a fantastic new feature. I also got a Pro controller for games like Zelda.
At the moment there aren't that many interesting games available. I'll pick up Mario Xcom and maybe Splatoon 2 later this summer. The eshop games are quite pricey and I'd rather play multi platform titles on more powerful hardware.
Overall I'm very pleased with my purchase despite the high price.