Far from the “it just works” dream, this program just does not work. I have a relatively fast i7 laptop with plenty of RAM, but OpenShot slowed my entire system to a crawl as soon as I started to edit some video. Firefox became unresponsive and OpenShot crashed or at least appeared to do so since a crash report window opened but OpenShot did not close.
Last 5 years of my 7 years Linux experience I was regularly challenged by day-to-day video editing tasks. Main content was 720p/1080i/1080p in ts/m2ts/mp4/mov. The most useful instruments that produced a really nice results was combination of avidemux, kdenlive and VirtualDub (under Wine). As per my experience you are able to get excellent results with those tools but the problem is workflow really uncertain and not stable sometimes. Lack of features also has place. But the situation changes. Right now Kdenlive project is really nice. It has tons of features and stable enough for relatively serious editing/finishing. I am sure this won’t be too hard for any person interested to learn Kdenlive workflow. Otherwise this person is too lazy for Linux in general. You may find plenty of video lessons on ytube/vimeo.