OMG, I love Tina Fey! I got the audio (courtesy of my public library), so I had something to listen to on my way in to work. I took the long way home so I could finish it!
I enjoyed hearing about her growing up, writing for SNL and being on SNL, 30 Rock, etc. There wasn't anything that I didn't like. I've got the paperback too, a keeper!
I do recommend the audio; TF narrates it and there is a certain sketch she did in 2008 that I adored.