Drawn to the show mostly by the buildup, I found the acting more impressive than the script. I wasn't sure how the storyline could sustain a series. There was no "grey" in the morality - either the CIA would prove Brody a traitor, or he would prevail as a hero. Uncomfortable either way.
This episode was a game-changer for me. The show's edginess is starting to emerge, with the duplicitous nature of many of the players revealing themselves. This layer of complexity adds a morally ambiguous flavor, which lends to a far more intriguing thriller. I left the episode really anticipating the next, and that alone is a strong indicator that I'm now hooked on Homeland.