Simply wonderful! One of the few cross platform video editors that has lightning fast editing preview without having to create proxy clips for every step owing to GPU preview. A huge advantage considering the amount of time saved in having to not wait for proxy clip generation thereby allowing for a more flexible workflow. Beautifully blended workflow combining a bit of premiere and a slight bit of after effects. Having the control to edit content visually by resizing or moving clips and other elements directly on the editor / viewer gives a tremendous amount of creative freedom. See More

Blender – 3D animation suite (cross-platform) : Blender is a 3D graphics application. It can be used for modeling, UV unwrapping, texturing, rigging, water simulations, skinning, animating, rendering, particle and other simulations, non-linear editing, compositing, and creating interactive 3D applications, including games. Blender’s features include advanced simulation tools such as rigid body, fluid, cloth and softbody dynamics, modifier based modeling tools, powerful character animation tools, a node based material and compositing system and Python for embedded scripting.
Cinelerra is the most advanced non-linear video editor and compositor for Linux. Cinelerra also includes a video compositing engine, allowing the user to perform common compositing operations such as keying and mattes. Cinelerra includes support for very high-fidelity audio and video: it processes audio using 64 bits of precision, and can work in both RGBA and YUVA color spaces, using floating-point and 16-bit integer representations, respectively. It is resolution and frame rate-independent, meaning that it can support video of any speed and size.
Cinelarra is for video producers who need more than OpenShot, and who want a native Linux professional-quality video editor that supports high-resolution audio and video, and advanced features such as hue and saturation, overlays, denoising, compression, normalization, time stretching, realtime effects, nested sequences, color balance, image flipping, text-to-movie, batch render and batch capture, compositing, and much more. Cinelarra has nice integration between audio and video, and makes it easy to control synchronization. Blender and Cinelarra work well together; create your splendid animations in Blender and then integrate them into a movie in Cinelarra.
The point is, I make some of my income from editing video files. They are an important part of our business’s value adding strategies. So I don’t have time to experiment. I need something that works and is easy for our staff to master. Windows and Mac software does and, like most businesses, we’re happy to pay the price so that we can get on with the job. BTW, the package we’re using costs less than $100.00 per seat, has easy to understand configuration and user settings, is easy to master, makes editing, cutting, dubbing a doddle. It also batches files for rendering (from the GUI). it is reliable and robust, comes with excellent support and the authors have been quick to respond to requests for new features. It is also written to actually run in a multitasking environment so we can do other things when video files are being rendered. Linux authors, take note.
OK, as what we use in our office, bearing in mind that we need to do rapid editing and splicing of 1080p video from two fixed point cameras, we use http://www.womble.com/ DVD Wizard. The cameras (yes two) get plugged in, the files are dropped on the time lines and within seconds we can start editing. Moving through the files, editing and splicing, is fluid and quick. Rendering the final product is, of course dependent on format as you’d expect but we tend to batch our work and let the jobs run overnight.

6.1 No Warranties: The Noble Samurai Software is provided “as is” with no warranties whatsoever. Noble Samurai does not, either expressed, implied or statutory, make any warranties, claims or representations with respect to the Noble Samurai Software, including without limitation, warranties or conditions of quality, performance, non-infringement, merchantability, or fitness for use for a particular purpose. In addition, Noble Samurai does not represent or warrant that the Noble Samurai Software will always be available, accessible, uninterrupted, timely, secure, accurate, complete and error-free nor does Noble Samurai warrant any connection to or transmission from the internet.

Do all this in a basic newly opened blender session. Then click save as default. Then when you open a new blend you will always have these presets select. If you do this mid work in some blend you are working that blend will become your default (almost never what you want to do). You might also want to skim through the addons. Blender has a lot of power that comes turned off by default but nothing much for film editor.
Kdenlive is an intuitive and powerful multi-track video editor, including most recent video technologies. Kdenlive supports all of the formats supported by FFmpeg (such as QuickTime, AVI, WMV, MPEG, and Flash Video), and also supports 4:3 and 16:9 aspect ratios for both PAL, NTSC and various HD standards, including HDV. Video can also be exported to DV devices, or written to a DVD with chapters and a simple menu. Kdenlive packages are freely available for GNU/Linux, FreeBSD and Mac OS X under the terms of GNU General Public License version 2 or any version later.
Applying effects is as easy as drag and drop. But if you want to edit them, you'd need to right click on each clip and select Properties. You'd need to experiment with not-so-well documented parameters which take forever to preview just to see if you are on the right track. It is sort of easy to learn unless you want more than drag and drop controls. See More

Like you, I’ve never been able to keep Cinelerra open for more than 10 minutes but in my case, the reason wasn’t the ugly UI. The problem is rather that it is a total crashfest! I do not know a single piece of software under Linux that exhibits that many lockups, race conditions, segfaults etc etc. Heck, on my system, it can’t even load a project that it saved 2 minutes earlier without crashing and that sadly ruins the featurewise winner of the competition completely.
Content Samurai promises that you can “Create Stunning Videos Fast” with their app. You can use Content Samurai video creation software to turn articles, blog posts and shorter pieces of content into videos in minutes, or so the creators claim. I’ve spent a lot of money having freelancers create videos for me, so I figured I would give Content Samurai a shot.