I loved Lost as much as anybody could have, But I think that I'm simply too fatigued to devote myself to it anymore. I got so used to the awe and mystery of The Island that I should have known it couldn't last. When they sort of explained what the monster was, it was impossible for it to satiate my desire for an amazing explanation; the answer couldn't hold up the feeling of wonder.
And here is what I think is wrong with JJ Abrams. This is also seen in Cloverfield. He's talented at making the audience metaphorically drool for an amazing movie, but he spends so much time building up and building up that he can't satisfy. After watching so much Lost, Losing myself one might say (ha ha), I think that it is way too late to be answering questions that were raised in the first season. Most of us just don't care anymore. In fact, I don't think most of us could care as we don't have the emotional energy.
I think that they could just as well end the series right where it stands. This episode was brilliant, and I loved every minute of it. Everything but (perhaps evil?) future Locke is resolved, and that might be the only leg this show has to stand on in another season.
That said... I'm going to cry when this show is over. It's an amazing watch.