It's so much fun. If you've got a paid Nintendo Switch Online account, go play it it's a free download with NSO. That said

1. The super-short track list is repetitive as hell, they're currently only running the 4 of the 5 Knight League tracks in normal rotation... and realistically OG FZero only had 15 tracks and half of them were retreads with minor variations so it will still be a problem when they launched Queen/King leagues.

2. With 99 players constantly brawling, big rewards for ramming an enemy player to death, and some random speed-boost drops, the gameplay feels really random because of emergent factors. It's very chaotic. It's fun, and I've seen competitive streamers get sucked in so there's obviously enough skill involved to keep them engaged, but still there's a lot of races where you'll do everything right but still lose badly. My only first-place finish was blind luck.