I listened a Diluceo 4or 5 years ago. It was driven by a highly modified Dynaco SCA-35. That was the first time I experienced what some call blackness or space between the notes. I don't remember much about the imaging since I wasn't sitting in the sweet spot, but the output was very precise, clean and dynamic.
At that price, I would consider it a good buy, especially considering the finish. Besides the speaker itself, a 4x8 sheet of Mappa Burl is in the $400 plus range from I've seen.
Bill