You'll have to explain that to me. My experience with MDF has been that it is a mold-magnet if used anywhere near where it might be exposed to water (bathrooms and kitchens are out). It requires special fasteners as it doesn't hold screws (or even glue) well. It's ugly, heavy, is hard on cutting tools (and the dust in leaves in my shop tends to jam up tool joints that are supposed to slide/rotate like on a miter saw).

I pay more and go with a multi-ply plywood in any place that others might fall back to MDF.