Sorry for the late reply! It’s really a question of how you approach postgame content. It’s a fairly short “linear campaign” with hidden challenges for level replays. For me the story was fun and the mechanics engaging enough to enjoy beyond the short playtime.
I still enjoy turning it on to do a few fights and enjoy the rhythm mechanics, might do a new play through.
Been mostly playing ToTK on switch like some here, though I think I'll have to give a few more attempts at P ranking some bosses in Pizza Tower soon, or perhaps try to 100% Hifi Rush