Kotor II is a good game.
The gameplay is almost exactly like the the first game. There are some smaller additions like fighting forms. Though the forms are a good idea i didn't end up using them at all. The fighting animations are awsome.
In the first you had to complete a chunk of the game to get your beloved force powers. This game you get them from the start. The lightsaber takes a little while to get but once you do its very rewarding for a lightsaber is pretty much the best weapon in the game.
The story is a good length and is good. There are many unique characters from different races and even droids. each character has their own background. You can find these out by increasing the influence you have on them.
Some of the problems were the game wasnt much different from the first, there are quite a few glitches, and sometimes alien talk loops the same audio recording for different text.
Overall Kotor II: The Sith Lords is a great game.