Kdenlive

I'm coming from PowerDirector and Filmora which have only trial, I really like Kdenlive and the tools it has to offer.
Pros:

• It works fine on my windows 10 64 bit, i3-4005u (!), SSD and 8GB ram (except for when I use a heavy effects like 'Region', see note about proxy files below)
• It has the basic features like transition, basic effects, cutting video and audio
• What it does it does good, you can customize the parameters of almost every feature you have
• It renders properly

Cons:

• The interface isn't that intuitive, it would take you a lot of time to do your first project and figure out how to operate this software
• It's built for a multi camera shoot, so if you're just trying to combine a few videos together with transitions between them it'll complicate things a little bit
• The transitions don't have a preview, so you need to apply them and check them on your own (and if your computer is slow it's a big drawback), but there's a video on YouTube that shows you that
• There's no built feature to add text, you need to create a transparent image (png etc.) and add it to the video

Good to know:

• If your computer isn't that powerful it's recommended to check the 'use proxy files' under 'project' >> 'project settings'.
• From the transition it's mostly Wipe (with all of it's options), Slide, Fade and Region (if your computer is strong enough) that are useful for a YouTube video all others are all kinds of weird mathematical manipulation on the images (let me know if I left out any useful transition).
• If your video is a transition oriented video make sure you do it right, putting the first video one track and the second video on another track so that they overlap a little and then add a transition

Buggy on Windows 10, had to delete. Crashes constantly.

I was looking for an affordable solution in order to synchronise two or more video tracks and one audio track recorded with a pro gear. I've tested many software and I've found that this synchronisation operation was the discriminant between pro and consumer software (understand cheap or rather expensive software) !
Now, with Kdenlive, synchronising all these tracks is a matter of selecting the audio track as reference and to sync the others according to the former : three clicks no more !
It's also very simple to show one or an another video track in the final movie according to the selected angle.
Best editor so far for me.

Open source but "invalid clip error" is bad. You can fix this, download ffmpeg and extract bin folder to kdenlive bin folder thats it now accept almost all codec and format. But some times crashing app soo I not prefer.

[Edited by OKTAYMERCAN, January 25]

Easy to use, fast, with features that matches most common needs.

I used Openshot for over half a year. I got tried of it's bugs and crashes.** Why didn't i see this earlier ???** This is so much more awesome and I worked on it for over 2 hours, and it didn't crash or lag even once.
Totally recommend it :)

After trying Kino, Lives, PiTiVi and Avidemux, I came upon Kdenlive. While they all got the pixel aspect ratio for video from my Canon FS200 wrong, Kdenlive allows me to easily change this parameter. It even reads the native .MOD files produced by the camera. Kdenlive's interface is intuitive and powerful.

I liked the software and preferred it over Kino which is bundled with Ubuntu. Its a non-linear Video editing suite. The software is akin to Windows Movie Maker but is more powerful. It has many effects and filters, and after you finish editing it has the option of making, VCD, DVD, Mpeg-I, or Mpeg-2 file.

Well, after 2 years i successfully rendered a video on windows10.

Only currently available on Windows as a beta. portable installation.

Featured but unstable product, I can't even edit my project anymore.

awesome, powerful free software, great editing workflow

The only software of this kind that actually works well.

(..I run Linux..)

Best free (as freedom) editing software for GNU/linux users.