We stayed with Carlina for 4 nights. Three of us stayed in her two-bed spare room, the room was comfortable if a bit "cozy".
Carlina was a great host, very friendly and helpful. Although we didn't see a lot of each other she was great to talk to and very interesting.
The apartment was well equipped with everything you need as well, as being brilliantly located with a grocery store and downtown subway entrance within a stones throw. Although we were never out late the neighbourhood felt friendly and safe.
Bear in mind she also rents out a one-bed space in her living room so there will potential be another guest with you in what is a fairly small apartment. That being said we had no issues whatsoever.
All in all we had a great stay with Carlina and would recommend her to anyone looking to stay in Manhatten.