I have complicated thoughts regarding the NWN2 OC. It's like a talented person was forced to clean up a mess and salvage a working project, which is basically what it is. There were glimpses of dramatic understanding in there that is rarely seen in RPGs, like Bishop and Casavir's arguing over a female PC (inter-personal drama in an RPG!!!!), Bishop's betrayal (an RPG companion who isn't just a puppet and has his own agenda!!!), Sand and Qara's quarrel (that actually goes somewhere in the end!!!!), the Keep, an interconnected web of antagonists and hidden motivations, natural camaraderie that isn't Biowarean "witticisms" and is actually sometimes funny (I still remember Neeshka making fun of Elanee like "this water is so unnatural and deep, not like the swamp of dead people I grew up in"), story choices that affect gameplay (Khelgar becoming a monk or not), a natural and logical progression of the social standing of the protagonist, a mounting sense of pressure with the "darkness" spreading from the swamp and many more such things.
On the other hand, you have crudely copy-pasted fights, generic environments, overlong narrative detours that are forgotten the moment they end, like the entire section when you get to Neverwinter and finish at the orc caves, pointless companions (Elanee, Neeshka, Khelgar, Casavir, Zhjaeve, Grobnar), the trial's ending, the main antagonist being a force of nature rather than a character, rushed ending, it feeling unfinished in general, etc.
So, yeah, I wouldn't say the bad outweigh the good in this case, as I've been known to recommend a playthrough of it, but when it's bad it's very bad. It needs an overhaul and almost complete rewrite, but it has potential.