I actually found Obi-wan to be much less interesting than he was in the film. In the drama, he sounds like he is a bit tired, whereas in the film he had an energy that is really hard to put into words.
Also I really didn't like the extended training scene on the Falcon. The use of hypnotic suggestion by both Vader and Obi-wan drag down the mystical element of the story for me, and the idea that the Jedi don't use money on principle makes little sense, and comes across as very Star Trek: TNG (though that came later, I know).
Overall, though, it was a fun journey, especially the bits about Leia and the Rebellion.
By the way, where is the search function on this forum? I can't seem to find it anywhere.