This morning and at lunch I played with a coworker in tabletop mode. We each had a single Joy-Con and I actually think I may stick to that controller - it felt pretty good!
It's crazy though - the Switch concept has really proven itself to me. From Mario Kart and Jackbox in the office, Zelda on the train and at home, and then tabletop mode with separated Joy-Con on a flight I feel like I am living in a Switch trailer.
Great job, Nintendo. I'm really enjoying myself and, even better, other people are enjoying it too!
Edit: Although subtle, I also really like the rumble in this game. Is this what HD rumble is? Well whatever it is it feels really good, from revving up to using coins. It's really neat.