I think this episode was awsome! I deffinitely liked how they showed what happened with Locke and Kate, and played it up to the point where they eventually met up with Jack. Very interesting to see the perspective of the other characters, especially Kate up in the duct.

I don't know about everyone else, but it seems so strange to see them in a 'human' environment. After watching the characters run about in a jungle the entire first season, it's an interesting change to see them in an environment that is completely human made. For me, it was almost like seeing the LoTR's guys running around in a supermarket or something, lol. Very fun to watch!