Drywall is completed, so we were able to bring in the concrete finisher. He first cleaned the floors and then sprayed a bit darker grey stain on them. Then they put down 2 coats of sealer and a final coat of wax. The pictures don't really do it justice. We are quite happy with the way they turned out.
Below is our main entry and home offices.
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We did run tubing in the concrete so that we can have radiant heated floors. There are 2 separate systems. One for the apartment and one for our entry, home offices and laundry. I think the cats are going to love it.