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.

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]

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 :)

Kdenlive is good, some features are easier than Shotcut but the rendering time is a lot longer than Shotcut.
Render option is poor, not much settings or you have to learn more about ffmpeg parameters but it seems those questions are not get answered.
Back to Shotcut, the export options is a lot easier. No need to learn any parameter command.
Both Kdenlive and Shotcut are good alternative to Adobe Premiere.

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.

Near Terabyte Install, lots of Terminate-Stay-Resident apps running on background, Non-intuitive Interface (Explanative but...). This is the first 10 minute experience anyone will have until getting used to its "Quirks" that doesn't exist in most of competitive software doing the very same job. Even if freeware, no thank you for such complicated piece of software. Might be good for ones seeking Adobe Premiere alternatives but it's far far away from being Simplistic as User Friendly at all.

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

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

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.

It just works! It's easy to learn once you tried just about any other video editing software in the past. Intuitive and blazing fast & lightweight on computer resources.

Doesn't over-complicate simple tasks like trimming down a long video file.

While it is similar to Premiere and is a fairly straight forward video editor, it's not very stable (crashed 3 times though thank God it has an auto recovery option) and it took forever to render out my video only for me to find that it didn't bring in the entire clip so I lost a good 20 minutes of the footage. Not very useful.