I cannot speak from personal experience, just what I read on the net and what I hear and see on YouTube.
My personal opinion... the first thing one does is look at it, and already I am put off by it. A limited size, poorly designed screen layout and cheap plastic covered buttons that will crack over time and reminds me of the Timex computer module of the 70s is what I see. The layout is not even close to being intuitive, looks clunky and slow. Changing modes In between songs looks painful and long. To its credit, the size is small, though for me (and only my opinion), size is less important than flexibility. If they gave a better button layout, nicer screen, I would not mind if they made it 4 times larger.
Next, the sound... well, I dont hear anything special or different from it than what I saw in other modules, but I did not do extensive research there. With just what I saw, in terms of audio, I would place it up there in the top 5 modules out there for accordions (not that there are even 10 options out there for us... lol). It does have a midi in-out-thru, so if that is your thing, thats nice to have.
You said you were mostly interested in the Scottish module, and for this, I think it may have an edge over other modules out there, so that is a strong point in your favor for you.
Price is where it really turns me off. Compared to a similar Roland BK7m, it is about 50% more expensive if you include the Scottish module.
Have you seen the YouTube video? Unless I am mistaken, it is given by someone with a bit of a Scottish accent.