I've been using VDH for many years, and have downloaded well over 500 videos over the years. I have been pleased with the app as a whole, particularly their constant revisions to keep up with new content not downloadable previously. I have the conversion extension, which is well worth it, and I love the ability to download only the audio of certain videos. Ilike th fact that we have the ability to submit to VDH sites that don't work for downloads and many times they'll fix the problem in future upgrades.