I never liked NWN 1 OR 2 even when they were hot on the shelf, actually.
I still don't like them and still consider both the starting point of Bioware's descending parable.
NWN1 was horrible as far as single player campaign goes
True, the official single player campaigns were horrible, there's no denying that. But some of the premium modules and community modules were very good.
And many of the RP persistent worlds created by the community were incredibly well done. That was the strength of NWN, not the official single player campaigns. Those always felt to me like examples of what could be done with the toolset.
But then again I'm not particularly fond of BioWare's storytelling... which always seems to revolve around the same old "save the world" trope.