I confirm the positive feedbacks about William's appartment.
It's confortable and there is a lot of space. We were in 7 (with two kids!) and we felt very good because Kitcken was big enough and bathroom very huge, full equiped with many details provided by William. Mattress are very good.
The location is great, 5 minutes by walk from the 116th Subway's stop (red Line). This part of Harlem is close to central park (you can reach it in 10 min by walk) and it's secure also in the night.
William is very kind and always available.
Good experience!