Alex's place is in a really nice location next near Morningside Park and Colombia university. The private room is spacious, with a little kitchenette and a place to hang your clothes. It's easy to hop on the metro to get downtown, or you can do as we did and either stroll through central park or rent Citi bikes and bike down the waterfront.
Alex was really nice in letting us dump off our bags after a Redeye flight, and got the room for us real quick.
You can't really beat the value, you won't regret staying here.