Really great game. Every character is fun to play in unique ways, the soundtrack has some terrific new additions, and the game overall is impressively well balanced. It disappoints me that we didn't get an Adventure Mode, but the way Crazy Orders, Classic Mode, and All Star were handled all makes up for this I think. Online is way better than it was in Brawl, in part because of the netcode itself, but also because of the addition of For Glory 1v1, which is a super easy way to find somebody to test your skills against. The customization in this game is also a lot of fun to play around with and further diversifies ways I can play the game.
Things I don't like: Grinding for all of the custom moves takes a really long time. Equipments are all randomized upgrades rather than concrete sidegrades, making them inherently unfair. No adventure mode. I wish there was a little more hitstun so stringing combos together was easier. The board game and smash run are dumb. I guess that's about it.