Musical Fidelity Nu-Vista 600

Does anyone have any experience with the Nu-Vista 600? I would be interessted in speakers you have heard with it, as well as your generall inpressions of it.

I have the chance of acquiring one for a very reasonable price but will not be able to listen to one beforhand.

I have Vienna Acoustics Beethoven Concert Grands and Kef LS50s. I would probably use it to power the Beethovens.

Thank you for your inputs :)