Not sure if we're using this as the official 1-2, Switch thread, but I liked it so here goes.
I got the game on Friday and spent time playing it on Sunday with my girlfriend.  I genuinely enjoyed this, you guys!  The fact that there are 28 games total and that the main mode was a board game style format is what sold me initially.  Plus, I really wanted something that took advantage of the HD rumble.
So, there's three modes: one board game (as mentioned), a randomizer (just plays a game a random), and then you can just pick one.  We played quite a few of the games both via selection and via the random tool.  The Copy Dance game is a lot of fun as you dance and try to copy each other's poses.  There's a beach flag game where you run in place and then lift up a "flag" as the joycon vibrates.  We had a good time trying to mess each other up while playing games like Zen (where you just hold a yoga pose) and another game where you have to rotate the joycon without shaking to much.
A surprising number of games required only one joycon.  Eating Contest was one, but that used the camera, so it made sense.  There was another game where you shake a bottle and pass the joycon.  If it pops on you, you lose.  This has the most potential for a drinking game.
All in all, I think it's a fun collection.  The videos are cute and helpful to explain the games.  Admittedly, I had trouble with Ball Count, and I wish the games were more consistent on whether or not they used the straps.  Taking the straps on and off felt cumbersome.  I also appreciated the game telling you the level of activity required for each game.