I've just finished re-watching the series for what is probably my sixth time since it ended, and this time around, I've submitted a number of new IMDB updates, either because I noticed some Easter eggs that I'd missed before, or because, in reviewing someone else's comments, I felt compelled to make a counter argument to what appeared to be an incorrect understanding of the storytelling. And, I obviously felt compelled to comment on this episode as well.
I must say that I have always thought this episode rated a 10. This whole final season was well constructed, all leading up to this point. I don't see how an invested fan could avoid shedding some tears at various points in this season, including this last episode. After all the multi-season heartbreak, it was satisfying to see some of that pain and suffering finally being "unwound" at the end of this series finale. The reason that I re-watch this series so often is two-fold. I certainly enjoy the nature of the SciFi, but in this series, the SciFi is just trappings. The real storyline, essentially "the glue" that holds the series together, is that it is all about family (and not just by blood, but the larger, extended family). The core characters love each other, and are willing to sacrifice or die, if required, to protect each other. SciFi excitement aside, the series is a roller coaster ride of varied emotions, and those emotions extend right through the last seconds of this final episode.
My Fringe appetite is satiated for another two or three years, but then I'll get the itch to take the journey all over again.