It runs on window, is not a subscription service, has a lot functions that I'm used to and has a lot of automated workflow possibilities. Theres a lot more it can do then I'm able to mention but here are some of the cool traits that stood out for me. It can group a chord progression and create a variety for multiple tracks without getting into the midi editor. Additionally, I can globally save those chords and use them down the line in any other project easily. Theres a lyrics function too where I can run parallel to a vocal track so the vocalist can pick up exactly where they need to and see what's coming. I've done a few demo projects and I really like it so far.