I saw the Highrollers announcement right before the site went down for the upgrade and I forgot to post when we got back up and running. Glad you caught this.
I just finished my first playthrough and I agree with
@DeadlyWest's sentiments. Although I found most of Act 3 to be great and of the same standard as the rest of the game, performance issues aside, the very ending is a bit rushed and a letdown. The final quest segment leading up to the big bad was a slog and not particularly fun. I had more fun with the final boss battle than
@DeadlyWest, but I stayed and fought. The ending cinematics are really rough and choppy. Also, while I understand why a lot of fans thought the new ending for Karlach was needed, and it makes better sense, I don't like how it is the final scene before the credits. It felt like it took away from my character's ending.
Still one of the greatest RPGs of all time but the ending feels like Early Access at this point. I trust Larian will make it right in due course.