3 years late to the party, but Ring Fit Adventure is really awesome!
I borrowed it from my girlfriend to help with my weight loss plan, and I was really pleasantly surprised by how much of a workout it really is, I'm genuinely working up and sweat and getting my heart pumping when I play for a while. My legs are actually pretty sore today from yesterday's session.
It succeeds brilliantly at making exercise feel fun and rewarding, (it's much easier to summon the motivation to play through a few levels of it than to go and jog around my local football oval in winter) and it has that classic EPD polish and sparkle that brings back warm memories of games like Wii Sports Resort.
I'm thoroughly enjoying it and it retroactively elevates Switch's 2019, a year I already thought was a great year for the platform.
These kind of quirky and off-beat games are one of the things I really love about Nintendo, I can't see any other major publisher creating something quite like this, at least with this level of quality and commitment to the concept.
I can see now why the game has been so wildly successful, and it's a great example of what makes Nintendo special.