More a 3 star than a 4 star experience (but great location)
What a fantastic location (3 blocks from Central park, 4 blocks from Times Square, 2 blocks from 5th Avenue shopping, close to all main subway lines) but the rooms are looking a bit tired. We stayed in 2 double rooms. Phones weren't working, light in the bathroon flickered, curtains were filthy, no fridges in the rooms (limited stock and only be request. So how do you cool drinks?).
The concierge service was average. Suggest you don't book theatre tickets through them if you have time. Go to TKTS queue in Times Square and get for 40% -50% less. The hotel is big and very busy so check in and out takes time. 
Also we were charged USD14.90 for 24hr access to wi-fi. A rip off! Come on New York, in London and Europe most hotel offer free wi-fi.