We visited with six people and it was really great to have three seperate sleeping rooms and two bathrooms. We also used the kitchen facility for cooking every day which worked fine.
And exploring Manhattan was made super-easy with the subway station just around the corner reaching out to downtown within 30 minutes. Jogging was possible, too - Brooklyns prospect park is just a 15 minute run away from the appartment. We can truly recommend this appartment if you are looking for an urban base to explore the NY area!