Great staff - nice hotel
Just did a quick getaway to the city with my young daughters. Booked a queen suite at On the Ave. for a special rate. Room was very large, especially for NYC. If you are traveling with family you have plenty of room to spread out and the amenities were nice. Front desk, bellmen, doormen, were all incredibly friendly. I love the location because we used to live here. Walking distance to the subway, the natural history museum, Central and Riverside Parks. Great affordable restaurants everywhere in the UWS and a real neighborhood feel (don't stay in Time Square people - visit Time Square and then stay here). 
Room could have been cleaner, but front desk asked housekeeping to rush since we arrived early. Construction currently ongoing across the street so ask for an interior room if you want to sleep late.