I think the sound quality will most likely be very good. I'm sure the cycle be a worth while addition. It looks like he's conducting M3 and M7 in various places, so perhaps those will be among the first releases. I already have an excellent Czech Phil. M7 with E. Inbal conducting (Exton). They've recorded it five times already: Neumann, Ashkenazy, Kobayashi, Macal and Inbal. The Macal seems to be easy to find. On the other hand, I've never been as crazy about Neumann's M3 as many of the critics of the day were. I'm looking forward to a new and, hopefully, improved M3 from the C.P.O. For the time being, yet another really good M4 will have to do.