Only 2 weeks in, I can say that it is cooling well.  Seemed like my old Amana 20 Cu Ft refrigerator had more storage space and held more food.  Since my refrigerator is rather exposed in the kitchen and only the front doors are stainless steel, I would have preferred that the remainder of the cabinet was painted a lighter gray that was a closer match to the front doors.  The dark gray is a bit of a miss match.  The only thing that I can see you get with the "professional" model vs. the regular model is those big door handles.  Unless you really want those large handles, I would recommend getting the regular model without the big handles--the other features all appear to be the same for less money.