What I like is that it's all a continuing story. The basic game, Broken Alliance and Sin and Sacrifice didn't disappoint. I didn't get Anabasis, just didn't appeal to me, but even that's mentioned in Sin and Sacrifice.
S&S finished in dramatic fashion, I'm looking forward to seeing how the story develops.
Now if only we could get them to do a B5 version of this game type, that would be perfect.