I'm enjoying this one. I wasn't expecting a good smash game again after 4 but I'm happy to be proven wrong. GSP is a poor ranking system that makes no sense and seems to have no effect on my matchmaking half of the time anyway (e.g my 3M characters get matched up with a low 2M player, my mid 2M characters get matched up with someone 3M+). It's more annoying than anything watching it fluctuate so wildly. Quickplay does have good connections a lot of the time so that's good.
It could have used some more single player content I guess, World of Light is absurdly long for how few good ideas are in there. It's more of a chore than anything but they didn't lock anything major behind it either. Spirits are just Stickers, I didn't care about Stickers in Brawl and that hasn't changed.
Good game, will continue to play and continue to get really mad at dedede players.