Well, this definitely has been the most challenging place to stay that i have found thru airbnb.

First, the apartment is small but enough to fit 2 or 3 people. Small kitchenette, one sofa at the living room, and one air mattress that we could never set up to work right. No space to hang anything, and actually, looked like they didn't expect to receive anybody even though we confirmed booking since first week of the month. The place looked messy, with stuff lying around everywhere, but the worst part is, beneath the messines, it was dirty.
Even though i priorly asked for a set of clean sheets and clean towels, i got them, but definetely not clean. Had to bought new towels, because the ones we got smelled funny.
Every space of the house was at best dusty, at worst filled with women hair. By the second day we had to sweep and mop the entire place to feel a little comfortable, but really didn't help. We left by the 4th day. I know the price wasn't high, but to pay 25US for the cleanliness was a bad joke.

On the bright side location is awesome. Harlem is a really nice place to stay. You will find a store or bodega in every corner, the 16th st subway is a couple blocks away, and around on Frederick douglas Av. you can find a bunch of restaurants, bars, cafes and some stores, great place to hang around at night. Central park is 10 min. walking distance.
You see a lot of locals hanging around on the streets all day and night, but nobody messes with you, i never felt unsafe or threatened. If you want to meet the real harlem, walk up north some 5 minutes to 125th avenue where you can find cinemas, stores and chain restaurants, and mostly the local harlem flavor.