Yes I judge the NwN games purely on single-player because I never play anything multiplayer. And yet, my judgement of those games is not entirely negative. I do dislike NwN1 but really love NwN2. The reason has nothing to do with the single-player experience, which is pretty good in both games, but rather that the first game is solo play (i.e. no party) whereas the second game is party-based. That's the key factor for me.