After using the Serene for almost a week I have formed some opinions. It is wonderfully elegant feeling. The operation is a pleasure. The sound quality is typical B and O. All in all a wonderful phone. The fact that I got mine for a 30% discount from the dealer does certainly help me appreciate it.
Beovision 7-55 with Beolab 7-4, 9s and 4000s
Beovision 10-40 with Beolab 1s and 6000s
Beosound 1, 5, 2000, and 3000
Beotime, Beotalk, Beocoms