Very shallow shelf unit on a track? On wheels? Either way, this is a genius way to use that dead space between the fridge and counter and save valuable "shelf realty" in cupboards and pantry. I can see this for all the boxes of foil & plastic wrap, and zip bags. YS
I look at this and think that is just the kind of place I& like to live, then I think it would be expensive to heat in the winter with those vaulted ceilings. Sometimes my practicality can ruin a good idea!