I really don't like the scented DW detergents myself. I hate it when you open the machine up and get blasted by lemon or orange or ever worse, a floral bloom!
We use the Walmart stuff most of the time, or the Cascade "Clean Scent" detergents which don't smell too bad.
Since we discuss vintage stuff here, back in the very early 60's when my parents first got their Mobile Maid DW the machine had a special smell to it when it was done washing. It was sort of a clean baked type of smell. I can't really describe it. They used Electrosol at the time in that machine.