I might as well join the party and blog about ABC's Lost.
There was a lot of pressure to land this big ship, and I think they did a reasonable job. There were expectations of having several questions answered. Like, what is the island? What is the strange light in the middle? What's this alternate universe thing that's happening?
I don't think any of those questions were given definitive answers, which might drive some people nuts. But Lost has always liked to throw things at us to make our brains explode, and this final episode managed to still do that.
At the same time, there was closure. All those tragic love affairs were resolved and people were able to get back together again. We find out who ends up with whom (that whole Jack-Sawyer-Kate-Juliett quadrangle was a little annoying). And the self-improvement that people went through was also satisfying. Sawyer/Ford ends up a decent person. Jack fulfills his mission in life. Locke is redeemed.
Then there is the element of faith and afterlife that comes up. I'm still trying to wrap my brain around that, but it made for some food for thought. Of course, I tweeted that the next LOST series will be called "Lost: the Afterlife". Where the gang gets stranded on a mysterious cloud.
The ending of the show did create for an emotional ending. By this point, though, I had already said goodbye to all my favorite characters. Locke had been dead for a while, Sayid was gone. Jin and Sun's demise was the saddest to me. And I still miss Mr. Eko. Whatever happened to him?
There were a lot of other dangling threads, like what happened to the plane the others escaped on? What happened to the island after Hurley took over? etc. I think they provided enough other closure that those things can remain mysteries. I, for one, don't have to have every question answered to enjoy the show.