Handbrake is the most reliable video converter program I have used, but you have to admit, when you look at it, that it's not very consistent in its image or branding. For instance, "Handbrake" is not a word in any way associated with video files. It's a lever you pull in your car to keep all the wheels from moving when the car is supposed to stay motionless. There are a few concepts there that are at odds with video editing. Second, its icon is a pineapple and a cocktail glass, which not only has nothing to do with video files, but nothing to do with handbrakes either. If you were looking for a video transcoding program and had only a list of titles or icons or even both of them together, you'd still be more likely to pick up something that uses the word "video" in its name and/or a frame of film as its icon before you'd pick the pineapple car brakes.
Mokalus of Borg
PS - The program itself I can hardly fault at all.
PPS - It is a complex program, but video transcoding is a complex task.