I had to buy this model sight unseen.  My local store only has a few appliances on display. When I looked online, this model was showing a third shelf at the bottom of the door.   This model was about $170 more than the smaller 15 cu ft model.  To me the extra storage in the door was important.  I went ahead and ordered this one.  It was on backorder and I had to wait over a month for it to come in.  I don't think 1 cu ft would make much difference and had I known this model, when it finally arrived, would not have the third shelf on the door      I would have saved myself a lot of money by buying the slightly smaller model that was on sale, and available for immediate order.  
The other thing I must say is that this refrigerator is louder now than it was when I originally got it. At  first I did not hear it from my bedroom but now I do.
Other than that it is just a refrigerator and nothing special about it.