hey doug, i have a 2005 itasca that had a new norcold rim1200 refrig installed in it in 2009 because of a california lemon lawsuit. thats how i acquired the unit. i bought it from winnebago industries.
there was nothing wrong with my insulation period.i am aware of the insulation problem, and i installed the cooling unit myself.
the cooling unit just was not adequate in temps above 85 degrees. the higher the outside temp, the worse the refrig performed. i was in phoenix all last week with the temps near 100 degrees, and the the new amish cooling unit maintained the correct temps even with the sun on that side of my coach.
the bottom line is that in my situation, the new amish cooling unit did what the norcold cooling unit could not do.