I love Video DownloadHelper. It does what it's supposed to do, is easy to use, and has a nice (but not overwhelming) amount of features and options. I am a long-time user and have never been disappointed by it.

Used to be my go to video downloader, but in the last hour it pushed an update that stops any interface from popping up, it downloads an extensionless file to a folder other than your default in it's settings, and uses the browser default, and says all files are 0 bytes... but once you find the file and rename it and add a bunch of extra steps, it's the right file. But serriously, what broke guys?

Easy to use; intuitive!