While I do not want to go into too much detail, I thought I'd put my opinion out there and say that I could not be happier with "The End". Unlike many, I was not going into the finale expecting or even hoping for a litany of carefully-explained answers, as I always felt that to spend a lot of time rationalising the many phenomena we've seen on the show would be a total waste. The writers have said from the outset that this is a character-driven story. In six seasons, we have charted the story of people with issues, suffering from the emotional trauma of such issues and learning to live their lives in spite of these issues. What we had not seen in its entirety was each character's resolution of these issues, and "The End" provided these resolutions, coupled with the most emotionally satisfying scenes I have ever witnessed on television.
I could go on, but I shan't.