Was good, but then an update broke it, at least for me. Can't reliably download anything anymore, most things get corrupted, or end up audio only. Contacted support when it started and they just told me to use the "force download via web browser" option, which isn't an option on videos with separate audio and video.
Please note that "force download via web browser" option is available only for single file video type. Please contact to our support with more details and link to the problem video: https://www.ant.com/support_form