To be honest, the video sequencer needs heavy refactoring. Yes, it can be used, but the UI isn't the best. Text support is very basic, so for titling it's not very useful (text is a general issue with blender). Also unfortunately, one cannot use shaders directly in the video sequencer to create their own filters for instance. Same limitations with the compositor (which isn't GPU accelerated so it is really slow).

But hey, it's free.