It is the best video converter high quality, easy to use, multi-platform that you can get online; able to convert any format, at least the most used, and the best It's FREE!.
The user interface is quite simple, a small learning curve to understand how it works, but it is quite logical so I think anyone using them with few minutes can convert a video, at least using the presets that come with the application.
For more advanced users also it offers more possibilities as:
Title / chapter and range selection
Batch Scan and Queueing of encodes
Subtitles (VobSub, CEA-608 Closed Captioning, SSA, SRT)
Cropping and scaling
If you need to share video on your social networks, website etc, with lightweight and great quality videos but know nothing of CODEC or Average Bitrate HANDBRAKE is the best tool you can have in your workflow in a few minutes you can share all the videos you want in any social network or website
Part of my job was to provide my light and quality to share their social networks for video customers, and using after effects / premier was quite difficult to get the best quality and low weight of the video to be delivered; perhaps due to ignorance; but since I found Handbrake; all customers are satisfied with the quality and even and increased the number of videos requested me.