Personally I feel that the quality actually took a steep nosedive after the pilot. :/ There are plenty of people who love it, and I'm happy for those people, but frankly I could never get into that show.
I didn't like the Pilot. It was too cheesy and tried to throw in way to much foreshadowing for later episodes. Or at least, I hope most of that was foreshadowing and not simple unexplained random lines.