The motor runs a long time and is very noisy - sounds like my bathroom exhaust fan.  When I shut the refrigerator door, the freezer door pops open, then closes itself, but lets in warm air.  There's a lot of vacuum on the lower door and the refrigerator is so lightweight that opening the lower door pulls the whole refrigerator away from the wall.  There's so little vacuum in the freezer that it seems like the seal isn't tight enough.  The ice maker is cheap plastic.  The thermostat seems to work OK and keeps the food cold enough.  There should be another shelf in the door next to the butter compartment.