This is a good refrigerator and the features are great.  We have had it for almost 6 weeks. 
However, there is a harmonic humm that occurs a majority of the time.  We have had it serviced. The hum is basically due to the number of fans and compressor that help make it efficient.  The hum for me personally is like noise torture and gives noise fatigue after a while.  We have a great room so it is difficult to get away from the sound.  When it goes off it is dramatically quiet.   For that reason alone I would return the refrigerator and am trying to do so, unless GE comes up with a way to muffle the harmonic sound.