Jon, 
I just picked up the PC version last night.  I loaded it with anticipattion and set forth to playing my new Jedi.  As I read the history and storylines, I found myself kind of disappointed.  In KotOR 1, Revan did NOT go to the Dark Side.  He slayed his former pupil and saved the Republic and the galaxy.  Now, I am supposed to believe that this did not actually happen?  For me, this is NOT KotOR 2, but rather KotOR: A Totally Different Story and Timeline. 
  
I have so many questions in game that are not options for information and history, I am getting frustrated trying to follow what little they do give me.  I am "the last Jedi", yet here is this old woman with whom I have a "force connection" and seems pretty much a Jedi to me.  That makes two, right off the bat.  I am NOT the last Jedi.  *POOF* There goes my suspension of disbelief.   
  
I have only made it to Telos, and am seeing a pattern developing.  I may be assuming way beyond my knowledge, but I get the feeling this game go thusly: 
1) Arrive at new planet. 
2) Be held/imprisoned for some reason. 
3) Lose the Ebon Hawk. 
4) Find and/or repair Ebon Hawk. 
5) On to the next stop. 
6) Repeat. 
  
Granted, I have only been to 2 stops thus far, but the similarities are enormously similar. 
  
HK.  What a disappointment.  He "looked" like old HK, but definitely not him.  The voice was similar, but not quite the same.  The attitude seemd "fake".  Something got lost in the transfer to Obsidian. 
  
I bought the game to play a Jedi.  How did I start?  As a droid.  yay...  I think I am 6th or 7th level already and still no lightsaber on the horizon.  Will I go through half the game saberless? 
  
On the positive side, the User Interface is much improved!  I did have a couple of "medpak" mishaps (like healing an already fully healed character), but overall, I like the UI.  I like the added powers, though I have not tried any of them out, yet.  From the little experience I have had, I like how the "workbench/labbench" system works.  It makes so much sense to be able to "undo" something you do not need and scavenge their components to make other, more useful items. 
  
Comparisons:  
KotoOR 1 I knew who I was (yet  proved to be wrong later on), a Scout working for the Republic.  I had a missions: Get off of the planet I was on; Rescue Bastilla.  While doing this, I find I am a Jedi.  Next mission is to go to Dantooine and become a Jedi.  Then came the Star Maps.  There was rhyme AND reason for my journeys. 
  
KotOR 2 I have no clue who I am, I am a Jedi with no powers, I have no missions except to run away from Sith, and I just do not feel my character has any direction whatsoever.  My "guide" here seems to be more frustrating than a help.  She has such an attitude it is tough to be "good" with her.  I had a "force link" with Bastilla.  Now I have one with this unknown person?  Been there, done that, got the t-shirt.  Bastilla's storyline was awesome.  I do not see this storyline with Keira(?) going the same route.  I could be totally off, as these are my very first impressions. 
  
Overall, I am disappointed, though not outraged.  KotOR 2 just fell far short of my own personal expectations.  I figured as much as KotOR 1 was the best game I had played to date.  This is just first impressions, remember.  I have much more to play.