*Spoilers below*
Well, this was pretty good. Seems to answer a couple of questions which have been hanging over the series, at least for now. Firstly; the Cylon-occupied Caprica storyline appears, from the dialogue between the three human-form cylons, to be a kind of social experiment. Second, it appears that No.6 is indeed a manifestation of Baltar's subconscious (so much for my theory).
Things I liked this time through; the focus on some of the smaller characters, a bit more of an examination of what is rapidly becoming the key relationship of the show (Boomer and Tyrol), and the Commander's stand against the witch-hunt tribunal.
However, while the absence of Apollo and the near-absence of Tigh and Starbuck was a pleasant change, they were missed. The three techs (who - particularly the girl - seem wayyyy too young) were not adequate replacements. And the President's line "The Cylons have the ability to mimic human form, they look like us now" was weak and annoying.
The final scene - of Tyrol breaking up with Boomer - was pretty good, and wonderfully ambiguous as we wonder whether it was the Cylon or the human side that was out during the argument. And it was nice to see jealousy and rivalry among the human-form cylons (can we come up with an acronym for that.... please? It's too long to type every time) - being human in form seems to have its disadvantages
Just a thought,
Rik