Complicated user interface, but once you got it figured out, it works well for the most part. My biggest gripe is their 1080p requires a software installation outside of Firefox. Okay fine. After the time-consuming task of downloading and finalizing the download, they stick a giant QR code block on the video and mention how you need to pay to download videos without the giant obstruction. Would have been nice to know all this crap in the description or some kind of notification before downloading the 1080p video.