I bought the Enhanced Edition and I won't look back. I can't justify a game being good if you have to mod the hell of out it in the correct order or it fucks up my game. Obviously I've only played vanilla and never used Shadowkeeper. While I enjoyed the BG series immensely and I've beaten it twice, this to me is the future of the BG series. I'll gladly pay 4x the GoG amount to play a game that has everything I want in one install.

And because I *have* to beat a dead horse further, once the game is installed and played once, the DRM is no longer there. The only difference between it and GOG is that you keep your internet on for a minute longer.