Mark was a great host and extremely responsive and receptive! His place was extremely clean, definitely spacious for a studio, and was conveniently located for what my friend and I needed. Mark mentioned this way beforehand, before even confirming the booking, about a family that lives above with children that enjoy running around in the morning, but neither my friend or I found it to be a problem and they weren't much of a disturbance. Would definitely recommend staying here for a nice vacation in Chicago!