I'm not quite a Visconti fan, though Rocco and His Brothers is nearly the greatest movie I've ever seen, and The Leopard is also a masterpiece. But that's all I've watched...so I'm not quite 'fan' material.
I recently attended a theatrical screening of the new restoration and thought that it looked quite wonderful. Its transition to Blu-ray, however, is less impressive. Indeed, while the improvements over the previous DVD release are substantial -- with detail and fluidity now being a lot more convincing -- there are areas of the film that show some unfortunate weaknesses. The most obvious ones appear to have been introduced by some light filtering adjustments that have impacted the film's dynamic range. As a result, there are areas where some unusual flatness emerges and blocks of grays overwhelm what should be proper blacks. Many of the most obvious examples are during indoor footage (you can see examples in different screencaptures from #31-39) but the effects can be seen even during daylight close-ups (see screencaptures #5 and 27). Obviously, there are some inherited density fluctuations, but where the grays become prominent depth and the overall image balance are less than impressive; fluidity suffers as well. The good news is that a lot of the daylight footage still looks terrific. Also, image stability is outstanding -- the edge flicker and the various shaky transitions that were present on the old Italian DVD release are effectively removed. Ultimately, this is very clearly the best presentation of Rocco and His Brothers, but the film should have had a more convincing organic appearance on Blu-ray. (Note: This is a Region-B "locked" Blu-ray release. Therefore, you must have a native Region-B or Region-Free player in order to access its content).
Blu-ray.com has reservations: http://www.blu-ray.com/movies/Rocco-and-His-Brothers-Blu-ray/137420/#ReviewDisappointing, and it's too late to cancel my order. Oh well, I may end up enjoying it anyway.