I bought it, but haven't found the time to listen to it, yet.
It's somewhat strange: they compiled this disc from 2 different recordings. Parts 1, 3 and 5 are with Siegfried Jerusalem, in a recording from November 1992 - parts 2, 4 and 6 are with Cornelia Kallisch, in a recording from November 2002. They are 10 years apart!
When I've listened to it, I'll report back.
Cheers!
Freddy