Karen is a nice and helpful person. We didn't really get a chance to talk much because I was too busy visiting the city but I did trust her. She was willing to help me how to get around town since I never been to NYC before.
She has a nice little apartment and what worried me the most was how big her couch was. I'm 6 foot 3 and sleeping on a tiny couch is never good for me. You can use couch cushions to make bed on the floor and I was fine with that. Her place can get really hot so make sure that the window is a little open at night to cool off. I also wanted to take a shower once but I didn't understand how to get it to work so I ended up taking a bath instead.
Overall, it's a nice place to stay for a few days. She lives in a quite neighborhood and I would return there if I needed to.