I wasn't thrilled with the episode, but there were a few redeeming things.
Sawyer and Kate kicking some butt was definitely the main thing that saved this episode, I think. Not only could the show use a little more action (or really, movement) but there was definitely an emotional payoff with it. Not only just with regards to the first six episodes, but to the whole Others thing in the first place.
Also, bad-ass colder Jack is a lot better than leader Jack.
Juliet's story was boring, I couldn't care any less about her.
On a related note, not enough emphasis on the main cast, who are the ones that are cared about - not Ben or Juliet or Tom or any other random person.
All that said, I definitely like the direction the third season has taken so far. They need to keep up the momentum. Actually, I think that the decision to hold off the show for so long was actually a mistake, as it sapped any momentum the first six episodes built up.