initial skepticism about getting this for (mainly) solo play ... is eliminated after clocking 60hrs so far.

didn't even notice played that much which is usually a good indicator for having great fun
P/S:  8 player with all CPU level 5 (and above) for 5 minutes also very challenging for a quick run once in a while

Online multiplayer for smash is laggy actually. So not really recommended if you want a smooth experience.

I play with a few US players, and one Australia player. The online is mostly alright, sometimes it's very smooth, other times it can be a little laggu, and some times it is just bad

Play quite some match in CNY.

There is a chance you will be facing lag , seldom get.

so far i can say 1 in 10 match i face,  mainly depend on the opponent i think.
i play really bad, so nvm for the lag haha