I've asked a local dealer about Pegasus Wing, also read what to find at the web, but as long as there (as far as I know) is no options to edit or create styles, it's "only" a playback machine?
That's an important feature to leave off a relatively "professional" level arranger.
It may be alright for some dedicated "home players" (although quite a few I know edit their styles), but it might quite likely be a deal breaker for the advanced or professional user.
Hopefully there will soon be an OS update to allow editing.
Ian