The stuff on the freighter is intriguing as well, Regina's cabin fever-induced suicide, Desmond and Sayid's interaction with those on the freighter, especially the neat scene with Gault, and it's just generally a fast-moving and entertaining episode, and doesn't clash badly with the main dramatic focus of the episode- Jin, Sun, and their relationship. Honestly, this made even the dullest Jin/Sun episode feel worthwhile, I really think this had a great dramatic payoff. Jin's actual fate is still debatable (pre-season 5), of course, and we know that if he died he died on the island, because the date on his tombstone is the date of the plane crash. Fantastic acting here, I thought Daniel Dae-Kim was incredible. There's also a very awkwardly-delivered line by Jorge Garcia late in the episode, I have no clue what he was thinking there.
Technically speaking, this was a good episode. I enjoyed long-time editor Stephen Semel's directorial debut on the show, though he has a long way to go to match the likes of Eric Laneuville and Jack Bender. Michael Giacchino did a noticeably excellent job with this episode, which, musically, matched this season's highs like "Confirmed Dead" and "The Constant". Lots of nice variations on established themes (and a couple of great new ones) in this episode which provided just the right sort of ambiance for the episode. Really, really great stuff, and a fine script by Edward Kitsis and Adam Horowitz, it's been really unique to see their development as writers on this show, from "Born to Run" to "Greatest Hits", "The Economist", and this.