Considering this warming drawer in our new build. They are push-to-open with no handle which raises a little concern as it seems like something that can go wrong, or with the stainless steel front always have fingerprints. Anyone have any practical experience and/or problems? Also, does anyone know the difference between the 7570CTS and 7680CTS models? Can’t find anything that pops out in any of the compares. Thanks in advance.