The series finale of Will & Grace was certainly not what I expected, but I have never been satisfied by a series finale (except maybe for Friends). I have to give the writers points for taking a risk by taking the characters into the future. I was relieved that they concluded with the four of them together where they belong.
My favorite part of the episode was the duet of Unforgettable by Jack and Karen. It was clear at the end that it was not Jack looking at Karen, but Sean looking at Megan and that was a special, bittersweet moment.