I liked the episode. The best part was the exchange that Captain Wildmark and the Commander had in the future. Captain Wildmark's confession and listening to the jazz mirrored what Donald/September gone through.
I do agree with IndyJones's opinions somewhat. There is a disconnect to what Fringe was in Season 2/3/4. The alternate universe arc was very interesting. I guess we will see more of it in the finale. I wish Fringe had more time as a series and more of the alternate universe instead of the end as it will be now.