Ranked in these QuestionsQuestion Ranking
Pro Free and open source
Flowblade is licensed under GPLv3 with source code available on GitHub.
Has an interface similar to OpenShot and PiTiVi but doesn't crash when previewing videos or after few render.
Pro Powerful and light-weight
Con Linux-only small user base
If you have a friend/machine running anything other than Linux, it won't work. So you cannot transfer knowledge as easily and this also results in a rather small user base so also fewer tutorials and online support.
Con Lack of advanced editing features
Doesn't support stabilization or complex transitions for example.
Con Requires higher display resolution
Con GPU rendering is unstable
A fair amount of hardware and driver combinations crash the software.