Pauline's place is truly a home away from home. The place is charming, beautifully decorated, and exactly as described in the ad. It's just a 5 minute walk from Charonne and Voltaire metro stations.
The neighbourhood is lovely with lots of restaurants and cool bars around. The studio though is on a relatively quiet area so you will get a good night sleep.
I didn't meet Pauline during check in as I arrived quite late but she left me the keys at a safe place and I had no trouble checking in and accessing the apartment at all.
Communication with Pauline was brilliant even before arriving to Paris. Even though I didn't meet her at check in, I did eventually meet her and she made sure that everything was alright.
Highly recommend this place. It's clean, great local neighbourhood, and a wonderful host.