IMHO, the reason you see so many "KOTORII sucks" posts is that the game managed to upset just about every type of player in a small way:
1. people who care about graphics and combat didn't see anything that rocked their world
2. roleplayers got a much weaker story because of the cuts and the famous short ending
3. people who play for action and loot are upset about random items and easy to beat enemies
and bugs are driving everybody crazy. bad performance is something i expect on my sistem with any new game (blame my old ATI radeon integrated graphics), but people with good cards really shouldn't have to worry about frame rates and crashes.
so yeah, i - a roleplayer who doesn't care for graphics or loot, and enjoys the first part of the game - loved KOTORII, but i can see why other people didn't.
~ msp