We stayed in Mark's apartment for 4 nights in the middle of June with our 11, 8, and 3.5 year old. The size of the apartment was good for beginning and ending our days of being out in the city. We were able to rent a pack n play for our preschooler which made the sleeping arrangements work well for us.
It was nice and clean and bright, and the location is great! We walked a lot through the neighborhood (we enjoy walking and will walk many miles on a vacation per day) and there is a bus stop right on the corner. Many restaurants nearby as well as grocery stores. A couple of playgrounds were not too far as well as bagel shops :)
Mark was very responsive to our questions and needs and we would definitely stay here again!