I have one of the MGR (E46) units, much like the other member I have had the D95, the D99 and the D99+ units.
As far as I am concerned this is a far superior unit, I have had it installed for 2 months now, and I have not had ANY problems with the unit, I no longer have to reload the firmware every couple of weeks and the picture quality is far superior hat that of the Dyna unit.
I don't have any of the problems that the Dyna unit gives I.E losing GPS signal or Wi-Wi drop out.
If anyone needs more information please do not hesitate to P.m me, we are all here to help one another.
it is great with the ability to add DVB-T unit and DVR units that are fully controllable from the screen.