Listened to them again.
First the bad part: I find his version of A Swingin' Safari quite terrible. The typical pattern with the acoustic guitars is completely missing, the rhythm is a very stiff kind of "hopping". The trumpet also takes over this stiff ternary rhythms, so that it lacks the relaxed way in which Manfred Moch and Ack van Rooyen played it.
But I really like the softer, slower tunes, they have a good Kaempfert sound. I like the quality of most brass and string sounds. Just the Knackbass with its popping attack is missing. IMHO, overall very good rendition except A Swingin' Safari.