The game is simply put: amazing. 74 Fighters, 103 Stages, 1400+ Spirits as of April 2020, and tons of modes. There's really no reason to get bored. First: Classic Mode. Not only is classic mode not the joke that is Wii U's classic mode, but every character has a special route fit for that character. Stage Builder gives you way more freedom then brawl or Wii U. Training mode is way more pro players friendly, by giving you a Training only stage. New modes like Squad strike, Tornament, World of light, spirits board, Smashdown, and Super Sudden Death, all are great additions to the game. Also, spirits. they are suprisingly in depth. Don't let the pngs fool you becuase these can give you boost's and matchups that will make pokemon look like child's play.
The only thing i would say is bad is the online. But, other then that, this game is more then worth your buck.