Heard good things around the first game. Or maybe I've only seen the people happy with the game.
Anyway, while Dragon Ball FighterZ is the showstopper now, Xenoverse 2 looks like it might be fun.
I've played Xenoverse 1. From my friend's feedback, Xenoverse 2 is very similar to the first, mostly with additional story content from Dragonball Super, some tweaks to improve the RNG for special items/moves, and a variant of the character story.
It's a fun self-insert into the DBZ universe, and it can be fun to make various create a characters, modify your costumes and move sets, and zip around on a map to fight baddies.
If you've never played the original, I imagine Xenoverse 2 is a good entry point if you want to experience the game. Has there been any announcements whether the Switch version will come with the DLC characters and levels? You would hope the delayed release from the original game would mean it's coming with that content included if they're asking launch price for it.