Does what it says on the tin, with no BS. Ant downloaded two ~50 minute streaming 1080p videos in less than 20 minutes. It does require the download and installation of a helper app, but that's understandable for video encoding. I had previously tried another video download extension for Chrome, which took over SEVEN HOURS for one video and put a nasty watermark on it (which it didn't warn me about beforehand.) Frustrated, I tried out Ant Video Downloader and I was done with the entire process inside half an hour.