To me most disappointed has been the super long wait time compared to the quality of the end product, the open world gameplay, quest level design are so basic that there is no reason this should take 5.5 years. They gotta focus on what they do best and understand their limitations so they can deliver a lot more of the things they are great at, then just cut out the things that they are bad at. Larian also had success for their rpgs but they aren't dreaming about to dominate every field, they just focus on what they are great at. End result is loss waiting time between releases, plus a happier fanbase.
At this point I just want them to fix the game breaking bugs and then move onto the substaintial story content they are talking about, I'm sure adding AI and better physics at this point will just spawn new bugs and have their projects being delayed till forever. Not worth it, just accept they aren't good at making city open world work and they will never be rockstar or even ubisoft at that and move on.