Timstuff said:
There were a few audio glitches and slightly rough transitions which detracted from the experience a bit

Point them out, maybe it is something that can be fixed for future re-release. It was my first released fanedit (I've done before extended version of first Alien for my home use, but it was very easy to edit) so at some point, when my editing skills will be better I may try to improve it.

(i.e. the audio temporarily disappearing for a fraction of a second)

I didnt notice that when I was watching this version before uploading. Can you tell me where exactly it is?

implementation of "The Touch" during the last battle

I suppose you're the very first person who likes it :) It's 80's song and for most of the viewers it may be just cheesy and out of place, but Optimus without The Touch is not a real Optimus you know ;)

since I felt that their appearance later in the film was just a wee bit too abrupt

Well, they're present in Nest hanger in their car modes, and even after half of their scenes were cut, there still much more of them than Sideswipe, Arcee and especially Jolt. Besides, if there was no ice cream truck in Shanghai, upgrading scene would look out of place.

Thanks for review :)