I know the built in Sharp drawer microwaves have had a bad rep with smoke and weird noises and such. A lot of this I'm seeing seemed to happen 5+ years ago. Is that b/c Sharp fixed the problem? Anyone know if the newer models are safer? I did see there was a class action saw suit filed 1.5 years ago. Unfortunately this microwave is the only one that will fit in our lower cabinet-all the pull down models are too big. Even though it's a cabinet made for microwaves!