Why do you complain?
Honestly looking over several pages I find that most of the arguments being made are just truly full of stupidly, This game runs fine, not a single bug has been run into on my several play-through.
-Playing the original, I did in fact run into several game breaking and non-breaking bugs and playing this as said above, I have not ran into anything.
-Steam overlay has not once crashed on my computer, it might be possible something wrong is happening on your end.
-I am sure you have a better computer than the one I have played nearly exclusively on my laptop, ( although I have played on my more modern PC) It is running Windows XP, on one that can not even run simple games like TF2 or Limbo, and limits to around 10-20 fps on games like League of Legends, and has not once been above 30 fps. My laptop is well, basically ♥♥♥♥, so Why people who have great computers complain almost exclusively on crashes and game bugs when mine Works perfectly, aside from the cut scenes.
-I prefer to own a hard-copy but I don't mind owning this on steam and I plan to purchase the incoming BG2:EE because I have enjoyed every second of the original and this remake, Mods may enhance game play, but playing the game as it has come out then comparing it to this new version gives both good and bad points, and the Enhanced Edition Wins.