I really like this addon. I've been using it for years. The developer tries hard to keep up with all the Youtube changes and I appreciate his hard work. Yes, I think it is worth the small price to upgrade.

Well, it's three years later and I still love this addon and use it every day. My streaming in the evening is very slow and I dislike all the ads Youtube throws in. When you download the video you can watch it anytime without ads. That's right, THE ADS DON'T COME DOWN. I send the developer a cup of coffee every now and then so he will continue to develop it. Youtube changes things periodically which breaks the download but he fixes it every time. Yea Dishita!