First of all I have no problems with the game. On my PC it's running smooth, I had no issuse with bugs or any of this stuff. The Enhanched Edition (EE), is not a new or better NWN, its just NWN prepared for the modern time. And I never wanted something else. How could you even dare to ask to make NWN better, when it came out, it was one of the best of his time. With the new campains you can buy on GOG and mostly with the new campains you can get free from the community and easly download through the game (but not every community campagain), this game is a neverending fun. You can even easily create ur own campagin and upload it. Multiplayer also had increased a lot in this game. I'd say... Since it came out NWN was one of my alltime favourite (real) RPG. And the EE is worth the price. But don't think this is a Remaster or Remake. It's NWN like it was, which I enjoy, but kind a like with the same grafics, same story and a lot of it is the same like in Diamond and the original. But with sooooooo much more content.
At first you hardly understand what you have to do. Once you solve that initial problem, things get really fun. The game can be played through blindly, but I would still recommend using a walkthrough. Because this game doesn't take you by the hand and shows you every goal so easily. And since the levels are randomly generated anyway, the walkthrough is just a small signpost. The only other advice I can give is look for the chips. And skip Mining 3 and Biosphere 3. And don't search for the life support rooms, but if you find one always reactivat it. I guess the rest you will find out by your own.