Weekend Update seemed looooooong. That said, I did crack up at Garth and Kat. Kristen Wiig was trying so hard to figure out the lyrics. I can't help but laugh when the cast breaks during a skit.
The skits I liked were Rahm Emanuel (should have been the opener), the wedding band reunion (more fun than funny), and the Burn Notice one (so random).
None of the skits were super hilarious, but none of them were terrible, either, so it was an acceptable episode. They didn't really give Ashton much to do.
People are saying you can hear Jason Sudeikis say "so f***ing funny" when the show comes back from the final commercial break (before the goodbyes). You can definitely hear him, but I'm not sure that's what he says.