I had Mikeythemini install a Parrott 3000 in my R56
MCS about 10 days ago and am very pleased with it. I do not need the display as I have put voice tags on my phone for the numbers I regularly call and, all the functions I need can be controlled from the MFSW, ie answer call, make a call using the voice tags, end the call, plus control the volume. If I need to make a call to a number with no voice tag, the phone sits in a neat mount and I can find the number in my address book.
I wanted the car to look standard and felt the extra display would clutter up the dashboard. All that shows is the no-holes phone mount and a tiny mike above the driver's door pillar. It cost about £300 fitted and does everything I want.
I hope this helps