Great little duplex in the heart of Upper East Side. We traveled with 2 children (10 and 14). The stay worked for the 4 of us really well, in part because I could release the kids to go and explore the neighborhood on their own; conversely, I would not recommend for much smaller children or for those (of any age) who would not manage themselves around the city. The place is ideal for couples though. Quiet and safe location, very friendly and helpful doormen (give them some tips on the way out!). Stayed for 5 nights and used wash and fold laundry (very NYC) on the avenue block. Excellent communication and flexibility with Mark the host.