The coop is great and the I love the location choices here. It is buggy and the ai sometimes just turn into gods but a very worthwhile experience still.
An excellent sequel that improves upon the original in every way for me (the world choices were better in the first though imo!!) The performance was really annoying at launch too though.
Still my favorite in the franchise and one of the best designed open-world games of all time. The freedom given to the player in this game is still almost completely unmatched to this day.