Our stay at Grover's house in Harlem was the best choice we could have made. We were a party of 10 including 2 toddlers and it was amazing. The house is comfortable enough to accommodate us all, very well located, close to the subway (no more than 3 blocks, in a very nice safe area.
Grover was very helpful and accommodating, even though at our very early arrival he couldn't be present he made the arrangements for us to pick up the keys nearby, and very kindly check on us a couple of days later to see how we were doing.
We had constant communication with him via whatsapp, and his tips did help us enjoy our stay.
Piece of advice, with a big party of people organize a schedule for use of the bathroom (being just 1). We manage to get out of the house every day by 9:00AM.
I will definitely stay at this location in the future.