Completely hassle free installation. Have yet to come across a video that This software could not download or convert to another format. Not a resource hog, multiple videos can be downloaded simultaneously, while still using the computer for other tasks. User friendly software interface and extremely fast download speeds. Wide range of video download (i.e., when various formats are available for viewing) and conversion options. The best desktop computer video download software that I have ever come across. Even when there was no visible video address and/or no link to a video that could be copied to the Windows clipboard, This software still managed to locate and download most of the videos that I needed from all of the sites that have been visited thus far. While I have access to Adobe Premiere CS5 software for video conversions, MP4 Downloader is far easier to use, does not require one to setup a whole bunch of user settings, and requires no special hardware, as it uses very little in the way of computer resources. Although it is not mentioned in the Publisher's Description, the software works perfectly with the Opera browser.