The not so nice thing is that you have to periodically re-paint it.  I used white concrete floor paint hoping it will be hard enough to stand up to workbench use.  Its main flaw is that when I drag aluminum tools across it, they leave black streaks.  The next time I think we’ll use actual (two part) epoxy garage floor finish – or maybe even liquid acrylic plastic.

We (Mike and I) also repainted the floor, with a lighter gray.