Ahhh, I love Matt Damon, and every time he was on screen I was like, Gahhh. Anyway, he did a good job, and I thought there were a lot of interesting plot points this ep, and it kinda shows that as long as it is a season final, then you cant bring out all the stops! I can't wait to see how things turn out with Kenneth (possibly) fired - pretty sure Jack'll bring him back - and Jack trying to deal with Avery's pregnancy and the impending commitment that will entail, and finally Liz's new relationship (that'll probably be explained in the first ep to have fizzled out because Matt Damon[!] can only do the one episode). So even though I've kinda guessed what will happen, I'm still excited for season 5!
Also, I happened to really love the Wesley Snipes character. His and Liz's chemistry, although unsettling for Liz, was completely hilarious! If they ever bring him back in the future, I would definitely enjoy it.