I am very impressed with the developer and the add-on. I purchased this add-on only to discover that it wasn't working. I contacted the developer about it, who responded very quickly to say that the add-on was in the process of being updated. Within a day, it was working and I tested it out by downloading both a video as well as just an mp3. Both options worked great!

I am very happy with the add-on and, again, I am impressed with the great communication and responsiveness of the developer.