I stayed at Richard's place for a month to 'try out' NYC before moving here. This apartment was wonderful. Roomy, light and quiet. The doormen/women were exceptionally friendly, as were tenants I met in the elevator. The location is perfect. One block to Riverside Park (check out the 91st Street flower gardens), 4 blocks to Central Park, 1.5 blocks to the subway, a big grocery store (Westside Market) tons of coffee shops and restaurants within easy walking distance, and even a Walgreens a block away. Richard was very accommodating and helpful. I would definitely stay there again.
PS: having a laundry room on the floor was a huge plus, especially if staying for longer periods.