FINALLY finished Hordes of the Underdark. That final push now and finally made it. Had saves from Dec 2010, towards the end of chapter 2, with a final one then in Jan 2011, then another attempt last August, last save then start of September 2015, then again in April this year, with a last save in early May, and then again now, the final part.
Good game, good design, they pushed the limits of what NWN could do... Bar that frustrating part at the end if you don't know ahead of time that you'll need a ton of gold to get all names and all you have as source is the djinn in the bottle that buys at 15k tops. I got them all for 1.9M (so no final battle - thought I'd give it a go, but no reason and just wanted to finish it, so commanded him to die and that was that), but can cost you even 2.1.
So yeah, enjoyed it overall, but was also frustrated by it in parts, but that's also from how I play and such. Couldn't say more considering how stretched it was over the years. Basically have no clue what part 1 was anymore, those saves from Dec 2010 had me almost finishing part 2 like I said, so couldn't even say when I started it really.
Basically every year since 2011 when thinking of what I'll play I had "try to finish HotU" at the top of the list, but till 2015 I didn't even touch it again, and then took these three different periods to get myself through chapter 3. Just one thing or another not playing well with how I play and making me uncertain of a decision and giving up on it all as a result.
And yes, grinded rats for a long time towards the end, just to finish a leveling plan. Did it all single character, a sorcerer, taken through original, SoU and now this, no henchmen around since they lowered the exp received and just had to take care of them anyway. Finished at level 33 actually, but didn't get to level since that last level was gained there at the end, where I did take Aribeth and Nathyrra to see their endings too, and commanding them to stay with me gave me the exp I needed. Either way, a level 32 sorcerer with insane gear is darn badass, even if I made some poor feat choices earlier on.
You probably don't usually get sorcerers with str 18, con 20, 288 HP, AC 43, +30/+25 attack, 1d8+14 physical + 2d6 electrical melee damage, 10/+5 physical, 10/- for most and 20/- for a few other types DR, 20 SR, 14 HP / round + 5 vampiric regen... A cha of 32 was nice to have when spells were needed, but it wasn't often. Later edit
: Better yet, did start that fight to get level 33 and make screenshots. And since I did it, here it is