I have been using the stand-alone beta versions of this software since it was released. I have used it on Windows 7 Professional and Linux Mint 23.1 releases. I mainly use it on the Linux platform and have tested it extensively in the last couple of months, most recently on the Beta 0.7.1 release. It has produced faultless high quality downloads. It has been completely stable and fully functional. The quality is excellent, well designed with intuitive and excellent ergonomics. This developer really knows what he is doing. Recommended.