Michael was kind enough to let us drop our bags earlier than check-in when we arrived in Paris. The guests prior to house had left quite a mess, which caused our 4pm check-in to be delayed. However, the place was very clean after. The couch has seen better days and we couldn't sit on it comfortably, nor are there coffee tables as seen in the photos. Just be aware of this as there isn't really a place to sit and eat. The beds were very comfortable and the kitchen had enough bare essentials, a small fridge, and a washing machine which was great. The location was excellent and very close to the train and in walking distance to many places.
The biggest issue we faced was the noise. There was construction taking place in the next building and the courtyard was consistently filled with workers who were yelling at each other and using jackhammers and loud tools starting at 8am. It was unbearably loud and we were disappointed we had not been alerted about this prior to checking in.
The apartment itself carries noise throughout as well. When up in the loft, we could hear our friends' conversations in the basement. The bathroom is right off the main room and there is no soundproofing there whatsoever. As you can hear everything throughout the whole house, be comfortable with your travel companions. :)
We slept four people comfortably for a few nights and enjoyed our stay overall.