So I had some initial frustration with the speed of development for Windows. However there has been some great progress that I wanted to share.
Firstly it now works in more hosts. Previously in Bitwig the keyboard was stolen by the host and made the plugin unusable. This has been fixed and now it is working perfectly!
Secondly and most exciting is the release of Captain Chords Beta! I can report that it is working great and I have found no bugs.
So I am no longer thinking about refunds and feel reassured by the response times and openness of the developer. There is a new dev working on the Windows plugins to speed everything up.
So things are looking up! :)