This particular downloader works very fast. I have not experienced any technical issues while using this program. I use Windows 10 Home, 64-bit, and the program's user interface looks great on my computer. There are several options available when wanting to downloading videos. I have tried a few of them. I prefer the copy & automatic download feature. I am impressed with how the program also converts the video to MP3 file. There are many formats to choose from, but I only use the program to convert video to MP3 format. I have not experienced any issues while using This software. There are many downloaders available to choose from. This software is a very complete program which meets and exceeds my needs when downloading and converting audio.