The apartment was entirely redone in 2010 and with high end details including new light ash hardwood floors, granite counters, stainless GE appliances, new cabinets, Kohler bath fixtures with new tubs, toilets, and sinks, 17 windows, 6 closets (inluding 1 walk-in closet), and 4 rooms plus a full size living room, a dining room, and kitchen, and a small play area. The window sills are deep enough that an adult can sit comfortably in some of them. The best way to get a sense of the apartment is to see it, we can show it any time. It's never been advertised and was rent-stabilized for over 40 years before we moved in. It's very bright, and across the street from Mount Morris park where (as you mentioned) there is a gym, public swimming pool, and bandstand. There are great restaurants, music, and things to do in the area, and it's two blocks away from the subways at 125th street, either the 2/3  or the 4/5/6 train. $2625/mo.