We appreciated the flexible check in time since we were not sure if all of our other transportation would be on time. When we arrived Wayne had arranged for a woman in the building to let us in and give us a walk through. The wood floors were freshly mopped, the extra bed newly made and everything was in order. The description of the space was accurate.
The apartment is in a brownstone style building with windows at the front and rear, wood floors throughout and the bedroom was spacious. There was ample closet space for an extended stay and the air conditioners both worked well which was so nice after walking through the city all day.
A few things to note that may or may not be uncomfortable for you depending on your preferences: The neighborhood is transitional so not every building on the block is as well maintained as Wayne's. The walk to the metro is quick and it's easy to take the 2 to most places but the ride itself is more than a few minutes to areas like lower Manhattan or Brooklyn so keep that in mind while planning. Also, I loved how big the bedroom was but I tend to like it dark when I sleep, the windows are East facing and let in lots of light, if you need it dark too, bring a sleeping mask. The bed was a good size for the two of us but I like a softer mattress, if you like it firm you will be fine.
All in all we had no problems with check in or check out, we enjoyed the extra space, it was surprisingly quiet and good to see a part of the city that most people don't venture to. If you are curious about Harlem you should consider staying here.