Mark was very welcoming and was always responsive to every question we had. We didn't had a single problem.
The apartment was clean and just as it look online. All worked fine: the bed were comfortable, the kitchen fully equipped, air conditioner worked on the living room and was much appreciated with the very high temperatures of the week.
The neighborhood was quite, surrounded by restaurants and grocery stores to buy everything you could need. I never felt insecure even returning at 2 am.
The subway was a 10 min walk, and from there was a 30 - 45 min ride to Manhattan.
I would definitely recommend Mark and the apartment. We had a very nice week in it.