Buy the Sharp SMD2470ASY. 1.2 cu. ft. Built-In Microwave Drawer.

It costs more, but a drawer microwave built into your cabinets needs to not fail, and the Cosmo's reliability reports are too specific to ignore.

What was compared

1. Reported arcing is a risk you should not ignore
Multiple Cosmo owners report internal arcing after just 9 months plus a clunking noise from day one. That is an electrical fault in a unit bolted into your cabinets, not something you shrug off like a scratched countertop.
2. Controls that work when you actually need them
One Cosmo owner found the child lock is really just a button disabler, not real safety on the controls. Sharp's concealed glass touch panel with digital LCD is built to behave the same way every time you touch it.
3. A track record three times the size, same score
Sharp sits at 3.6 stars across 523 reviews, Cosmo sits at the same 3.6 from only 164. More people have lived with the Sharp daily and it still lands in the same spot, a far steadier signal than a thin sample saying the same thing.
4. 50 extra watts you will never actually feel
Cosmo's 1000W beats Sharp's 950W on paper, but that gap does not change how fast a plate reheats or chicken breast defrosts in daily use. Unless you are running this thing commercially, that spec is not a reason to pick the Cosmo.
5. Yes, it costs $500 more. Buy it anyway.
The Sharp runs $1,497.00 against the Cosmo's $999.99, a real gap on paper. But this is a built-in unit you live with for years, and paying more to dodge arcing, day-one clunking, and a broken child lock beats ripping out cabinetry later.