Hello!
Even though you seem to have a program already. I thought I'd share my experience too. I am a great fan of "free." But I do not want to pirate much, so I have tried few freeware and shareware programs. I used to make all my edits with Lightworks. I really like it, it is complete, reliable, easy to use and tons of possibilities. But for some time now, they will not allow the free version to render any higher quality than 720p. I looked at the price tag and behold, it had a "monthly fee" written to it. So I declined politely.
I started looking for programs that would offer similar front end experience, and ended up with Kdenlive. Now I mainly use Windows, and the Windows version of it, is still in development (I believe it is originally for Linux), and several functions do not work. But all the regular editing can be done. I have not tried any super fancy things, but blurring areas of images, zooming, tilting, transitions, all that works just fine. Editing several separate parallel video and audio lines is great. And also lots of tutorials available on youtube.
I have experienced trouble with rendering to some specific formats and making timelapses. Also rendering on my laptop takes terrible amount of time, regardless of how many cores I give access to the program. But that might be due to the fact, that it is still not a complete product for Windows. I have not tried it with Linux or other Windows versions, so your experience may differ a lot.