This episode feels quite entertaining at some points, while at other times, quite dreary.
Starting with a positive aspect, it carrys on desmonds thematic aspect that he is running towards as well as inadvertently running away from something, but at the same time, his flashback story seems somewhat flat and uneventful, the tied in concept of his "brother" catchphrase seems as ludicrase as the explanation for Jacks Tattoo, and at the same time, equally as pointless.
The love triangle rears it's ugly head again with a somewhat seemingly pointlessly time consuming aspect of Kate, Sawyer and Jack, not really doing very much really, this aspect will most likely lead to Judas Juliet in later episodes, but for the time being, utterly uninteresting.
It's not a bad episode, it just feels as if alot of time has been squandered, more time spend on Desmonds back story being matured to something interesting and less on the island would have probably made this episode more enjoyable for me.
There is also a gratuitous flashing of bodies in a sexual manner and a particularly graphic scene involving a character which not might be subtile for younger viewers. (who will watch regardless of the scheduling), this seemed very unlost like.