The app is great since I downloaded 2 years ago. I have only not been able to download videos from 2 sources, but everything else the program has no issues downloading the video correctly. But its new updates have make the add on so much slower. Then, out of nowhere I cannot select the destination file as every time I try to change it, the window closes before I can type file name or folder destination; and never downloads the video. I can only uses the preset folder, which complicated things cause I had to navigate my entire C drive to find the actual folder. Even after several uninstall/re-install attempts. My other complain is that I am not sure what is the limit in time length the add-on and companion program can download. Which I believe is short of 1 hour. If those issue get fix, I would easy give it a 5 star.