A new one on me too, just had a look at unwins site, they look lovely and very cute
General descriptions available seem to say mild types, though my idea of mild and a real chilliheads idea, would likely be poles apart!
I think Biquinho sounds like it could be a winner, could be great for pickling too? Let us know how this variety does and tastes
I'm growing a couple of very mild types (Trinidad Perfume, Pink Habanero and Aji Habanero) for similar reasons.