Paulina's apartment was quite cozy and clean. It was located in the heart of Montmartre surrounded by restaurants and shops. The metro station Blanche was two minutes away from the apartments, as was Moulin Rouge.
The apartment had 3 sections: small room with a single bed and heater, another entrance area with table and space to keep your bags, hang your clothes, etc. And the third was the living room with a small kitchen, dining table and sofa which opened in to a double bed. I am not sure if the heater in this room worked.
The bathroom was a bit small according to me and the window had no curtain. We covered it with a towel.
Paulina was extremely helpful and allowed us to keep our bags in her apartment as our checkout time was much before our flight.
The only thing I missed was a mop in the bathroom to clean out the water and a broom to clean the house.
Also, there is no washing machine in the apartment but there seems to be a laundromat in the street.
Overall we enjoyed staying in the apartment. We were three of us.