(Model # RF23BB820012AA Bespoke 4-Door French Door Refrigerator) 
I bought this just two weeks ago, and had a very hard time getting the temperatures set inside the door.  It wasn't until I installed the phone app that I found I could make changes to the settings.  The problem is that none of the real temperatures are close to what I set!  The fridge is supposed to be 36°F, but is just under 30°F.  The so-called Flex Zone is around 30°, but I set it for "Wine," which is supposed to be more like 40°F!  And, the freezer, that I set for -5°F, is more like -20°F!  Obviously, there is no way I can ever get that Flex Zone to be the temperature that I want (I wanted it warmer for Butter, because there is no separate Butter compartment, and I like to be able to spread it), so what's the point?  I undertand that I can compensate by setting the fridge and the freezer temps for warmer than what will show, but that kind of defeats the purpose of the manufacturer's claims, doesn't it?