For what it's worth, here are my humble thoughts on open source software that I use for a documentary on Switzerland's excellent neutrality.
It seems to me that in the last few years, a usable video editing package became available for linux.
It's called "openshot".
But make sure to save your work about every minute.
I love its special effects and transitions like fade in, fade out, video within a video, etc, etc...
However, openshot is not being updated.
So, I went back to another opensource video editor named "kdenlive", which I remembered as having trouble synchronizing
audio and video.
Kdenlive seems to me to have even more special effects.
And I find that when I now import .wav audio files, I often loose about a second of sound at random positions/times.
To be fair, I don't know if this is caused by my recording device or the bug I remembered in kdenlive.
So far, I work around it by just using the audio from the camera's built in microphone, which is lower quality, but only for the second of missing audio from the imported .wav file.
kdenlive crashes too, but not as often. (Save, save and save.)
I'm using kdenlive for a make a documentary on Swiss neutrality.
You can see a sneak peak at
http://loaner.com/please_answer_these_questions.ogv
Thanks,
Kingsley