nwn2 was a terrible stain on the RPG genre and a disgrace to Neverwinter. I loved nwn1 so much. Nwn2 was nothing of its predecessor... a complete disappointment.
I could not disagree more.
NWN1 base campaign was terrible. SotU was fine, and HotU was just ok.
NWN2 base campaign was at least as good as SotU. MotB was the best cRPG experience I had in years, if not ever. SoZ is weird, but I still have to finish it one day.
I agree that NWN2 editor is hard to use compared to NWN1, but I did not really use it enough to say something more. Still, I could use it fine. But compared to current state of the Dragon Age editor, it is a piece of art
Speaking of Dragon Age, now that I have finished it, I can give some feedback.
The story if great, if somewhat cliche... But I like it still, and the compainions and side quests are fun. Not much go there, kill xx monsters and come back type of quests. Well, I hate certain song singer acting (the song itself is fine), but that stuff happens.
Regarding stuff more related to what we can use, I really like the dwarven society. Not exactly one I would like to live in, but belivable, consequent and it fits the dwarves. It has a distant feel of the one from the Witcher series, but is nicely expanded and is something new and worth thinking on. So, arete or caste system?

Talking of the Witcher, elves are simply taken from it - with only little changes. There are some twists (immortality thing) - interesting but not that great.
The thing I dislike the most, is that the world is nowhere as rich and diverse as D&D and Warhammer settings. I know, it is made for just one game, but I really hate the thing that if I am fighting something, if it is not a person, animal or darkspawn, it is a demon. Undead? Demon... Treant? Demon... Vampires? Demons... Strange, blighted animal? Demon... - and so on. I really like necromancers being different sort of evil than demons, and even than vampires.
Darkspawn are interesting and twisted idea. I like it - if anyone can like such thing. I might want to add something of this sort one day... A disease, twisting and corrupting everything - but of different source than demons & undead infestations.