It is odd how some have problems and others don't. We currently have MCU1 and MCU2 cars but don't see any issues others have reported above.I also have mcu1 but honestly don't have freezing or skipping issues at all. My MCU is slow, obviously, and the web browser simply doesn't work, but everything else is usable.
I wonder why others have a hard time and mine is fine. I use it daily and am not ignorant- I use it to its fullest all the time. It's just solid usually.