Jadis musical value?

If you've heard or owned Jadis amplifiers, I would like your opinion on their performance value. When I see equipment this jewel-like, I tend to question just how much of the manufacturing/design budget was apportioned to performance and how much to aesthetics. Also and more specifically, I have some interest in the Jadis integrateds that come up for resale on Audiogon. Are they recommendable based on their performance alone? Thank you.