Well, I would still recommend seeing it but It could have been much better.
1) Too LONG. Cut out the dozen or so slo-mo scenes and crying scenes and random no point scenes and bring the movie to about 2:00-2:15.
2) Uhmm. How does the USS Stennis (CVN 74) get destroyed and then is shown in some of the last scenes helping to thwart the Decepticon attack? When I saw it again, I thought it was a Decepticon copy. Baddddd Editing.
3) Stop trying to cram everything into one bloody movie.