Product review (3 stars): Not a professional looking result.
I'm not sure why this is called a trim kit if it isn't the same the legnth as the microwave, even when the brand is the same. This Whirlpool trim is 3+ inches shorter than the Whirlpool microwave so the finished look is not what you expect at all. My package was missing the mounting hardware too, not that screws are hard to come by.