The place was small but totally comfortable. We didn't feel cramped considering it's a studio. It was clean enough, stayed very warm, and the location in Montmartre was lovely. We walked all over, and enjoyed our experience while barely leaving the neighborhood. One night there was a lot of street noise, but after that the neighborhood was surprisingly quiet by comparison. Thomas was friendly, helpful, and quick to respond.
I really appreciated the studio speakers and projector in the room. I've never enjoyed a better sound system in an airbnb. I didn't turn it up too loud though out of concern for disturbing neighbors.
Note- the door to the unit was slightly tricky. The big knob is just a handle, you don't need to turn it!