Let’s face it; microwaves are ugly! Just where do you put an ugly, beastly microwave in a beautiful new kitchen? I distinctly remember when my mother brought her first microwave home - it was an Amana Radar Range and the size of large dog carrier. In those days when you bought a microwave, you typically purchased a cart with wheels and proudly showed the unit off.
These days a more sophisticated approach is taken to a microwave. We have put them just about everywhere. For several clients, we have installed a traditional unit in the island. While this does a nice job of concealing the unit, the disadvantage is all of the bending a person has to do to see the controls and to remove the hot food. I hesitate building a custom cabinet specifically the size of the unit; it seems the longevity of a microwave is quite short - only three to six years.
A drawer unit is a nice option. It will hide the unit and make controls and food handling easier.