"You were at the Concert" is really the mark destined to this kind of project !
Those projects are certainly the hardest to create, because with no complete sources, but lots of bad and very short films, the motivation to mix all this stuff is only in the hand of people who were at the show and who wants absolutly to combine all the existing stuff in one big project, the most complete as possible!
If you were at the show, you will be very happy to have this, else, you should be denied !
The quality of the cameras used is very often bad (most are digicams with bad resolution), synchronisation is not always perfect, transitions between cameras are sometimes too much fast ! But the audio is very very good and this point makes this mix watchable !
We can see that the mixer makes the best possible film with the worst possible sources, filling gaps with photos or good effects ! A work with the heart ! A hard work for a poor result, but at least the best available sources are now on 1 video only !