I finished Mario last night, absolutely loved it. It's the most fun I've had playing games in a long time.
All moons finished, or a third of the way through, beating the first final boss, finished?
Defeated Bowser, apparently theres some 400 odd moons left to find!
One of the joycon sticks is slightly looser than the other now as well. Hard to describe, but it you can sort of rock the top of it back and fourth a little more than the other one.
It's worth carrying on mate - at least to 500 moons as there's some great content you won't want to miss.