It's a fun, brand new 2D mario game. Something we haven't gotten since New Super Mario Bros. U for the WiiU in 2012 (unless you want to count Super Mario Run or Mario Maker 2). I don't have a lot to say, just that the online functionality was my favorite part of the experience. Finding comraderie in random people you run into as you're both completing a level, where you're rewarded for helping eachother out and even ending a level together, gave some memorable moments where I only got through some levels due to someone else helping me or a standee being in the perfect spot. I initially played with the online off but I'm glad I tried it and kept it on all the way to the final boss fight, only turning it off for the final challenge guantlet.

Aside from that, very easy to 100% clear and was even worth doing. Just like 2D mario games before, this is an easy buy for anybody who owns a switch or is thinking of gifting a switch and wants to give a game that's not Mario Kart or Zelda.