Just to post my own experience…
Finished the campaign duo with a buddy. Didn’t experience any particularly bad bugs. Had a couple times where shit didn’t load right for me but closing and reopening would fix so eh.
Kind of felt like a couple plots didn’t flow right going into act 3 but nothing that bad. Act 3 did feel overall a little rushed and unfinished but was still damn good. Some act 3 highlights: House of hope, underwater part, final boss battle (if you don’t count the gauntlet, that part sucked huge balls)