I just finished TSL today (took me 5 days to plow through it, but then I can get a bit obsessive when I start playing RPGs...) and as enjoyable as it was, I have to say that I was wondering what the heck was going on with the characters & the NPC storylines (it didn't seem like there were any coherent ones to me). I'm still wondering what was supposed to happen with G0T0 & Bao-Dur's remote on Malachor, nevermind the almost non-existent romance... Speaking of the which, all I got were two-three scenes about the "romance", one where Atton appeared to be jealous of the Disciple & another where he was talking to Bao-Dur about the PC (T3 laughing at him was amusing though!). On to other weird things: Bao-Dur just stopped talking to me completely after Nar Shaadaa I think (or maybe it was on NS), I mean no dialogue options whatsoever! The missing dialogue and content explain much about the general weirdness of some of the NPC interactions, but now I feel somewhat depressed, and the ending (such as it was) rings even more hollow. Sigh.
P.S. I wish they'd mentioned what happened to Jolee (finding Bindo's Band(s) does not really do it for me!).