I use Movavi. Free to try, but not expensive either if you choose to buy (50,000 won). Good amount of features with a fairly intuitive interface that is both friendly to amateurs and sophisticated enough for intermediate editors.
Having said that, there are definitely limitations that industry professionals would find irritating. But for making a simple video, documentary, or even a music video (just be forewarned that you can't collage clips super creatively), I've found it to be functional enough.