Yeah it has some bugs but they've been fixing them rapidly and most of them are pretty minor. I've had the day 1 save bug, a black screen entering a big map, and occasionally voice line don't play. That's about it. Very good quality.
My experience has been pretty jank most of the time. Visual and dialogue bugs every play session. And one major NPC's storyline is completely softlocked.
Yes, it's certainly not bug free, there are bugs that need to be fixed. Worst persistent one I've had is that a Warlock 4/Sorcerer 8 multiclass I have always tries to upcast all warlock spells (like Hex or Misty Step) with their highest level slot, which are Sorcerer spell slots. Very annoying and not worth.
That said, I would not discourage anyone from getting this game on the basis that it has some bugs. I doubt most new players would know how deal with multiclassing bugs, and probably would be multiclassing in the first place.
Haha sorry, I said multiplayer not multiclassing. Haven't done any of the latter yet so can't comment on the bugs there. But in multiplayer some major storylines are bugged, along with some other weird jank.