I couldn't help thinking that they've simply substituted the FBI for CTU. Same characters, same attitudes, different faces and names. Even the same remote server room which primarily serves as a convenient hidden terminal and ambush point for the inevitable moles. But CTU had much cooler interior design. Heck, even Bill Buchannon's attic has cooler interior design. So, advantage: CTU!
I like Janeane Garofalo, but her talents seems to be wasted here so far. A generic babe could play that part and add some more eye-candy, never a bad thing on action shows.
It was amazing how much these first four hours follow the same old formula. I had hoped they might take this opportunity to shake the show up a little, but I see now they're plan was basically "back to basics". Maybe a little less torture, a little more angst. Whatever. Jack's back, baby!