Microwave is over the stove; small wall cabinet over the microwave.  Vent from microwave sends air (and other stuff) onto the cabinet above it.  Always have to clean the cabinet to keep grease from sticking.  Also, that clear plastic film over the buttons is actually the type of material that starts to crack and fade over time especially the buttons used most often (i.e. 2 minutes; 30 added seconds).  the buttons used most often are the first to deteriorate.  But when looking at other microwaves, they are all made with this clear film.  Not the best.