First of all I fail to see why this game don't have the same score as the original. Juste because it's the same doesn't make it less great. The story is engaging, the new relation with your party (influence) is a great addon and make role-playing great. For once someone found a way of making a Role Playing game without the "lost memory" thing and let you somewhat decide of your background. It is very well done.
The caracters are so good that, again, Lucas should take exemple on those and bring it in his movie instead of some lame JarJar or useless security guard of Amidala with a patch on his eyes.
There is a lot of space to role play here. Just take the time to decide what kind of caracter you want to be before playing and play it that way. If you've ever played table top playing game, you'll find that, as KOTOR I, this version is the closest thing to it to date.