ok just fitted the Parott CK3100, paired with my samsung d500.
plug and play with my gamma stereo, connects to the phone no problems, sound quality is excellent, caller Display works when you receive a call. ONLY thing is the phonebook is not automatically transferred from the d500 to the kit. Also when I try to send contacts manually the phone cant find the kit.
this is a bug with the samsung apparantly. the way to get round it is to send the contacts to the kit using another bluetooth device (laptop or another kind of phone), then when you pair the d500 the contacts are there!