I spend way too much time on YouTube looking for new artists or new versions of songs. Before this downloader came along, I had to record the stuff I liked onto another computer. Now I can just click to download an audio file in 256/32-bit high-quality MP3. I couldn't be easier. It works just as well with video, though I don't download many videos. I donated 30 bucks to get the PRO version, and it's worth many times that. Support is great too. I had one glitch, and they got back to me right away. Problem solved. I'm one happy customer. I highly recommend this add-on.