The Host: very responsive; before and during my stay she always answered quickly to my questions. Rosemary gave me all the information i needed about the apartment, the neighborhood and the trasportation to/from Manhattan. She also gave me the Metrocard (NY subway ticket)
The apartment: first floor but quiet, very well located because the Q and N Subway lines are just 5 minutes walk and you can reach Midtown (Times Square) in 35 minutes. In weekdays trains leave every 4 minutes. That's why i think it doesn't worth paying much more to stay in Manhattan.
The pictures describe the apartment as it is, the host also attached stickers everywhere to give basic tips about tools, utensils, furniture etc..
The area: i felt safe during my stay, there are 2 subway stations very close so that it's safe coming back home even late at night.
If u are going to stay for a long period, you will consider a plus being close to Prospect Park too, the biggest park in NY after Central park.