We stayed 3 people for 5 nights in Guillaumes apartment. Overall we found the apartment to be worth the money, however our biggest challenge was probably that we were 3, rather than 2 people. The space is quite small, and for our standard too small for more than 2 people. Also it seemed with the equipment, chairs etc. that the apartment was more for 2, than 3 or even 4 people as advertised
The apartment is very well situated for going out and exploring Paris. A very central location in a lively neighbourhood, yet very quiet in the apartment.
The apartment is in the backyard of a building and a street level. However there was a basement feel to the apartment, and I think it was difficult to get enough fresh air in to the apartment as there were not really windows to open (there were a locked window and a ceiling window, but both by the main entrance, so making a draft through the apartment was not possible) . We got by with the fan in the bathroom running and the ventilation over the stove.
Before our stay we got all the info we needed. During our stay it seemed a bit harder to reach the manager, however it may be due to extremely poor reception of the phone signal. At the end of our stay I called the manager (a few hundred meters away from the apartment) and she let us keep the luggage in the apartment, for longer than what we had paid for (as no new guest were arriving that day). That was a really nice gesture, and much appreciated, as it was raining heavily that morning and afternoon. In addition to that the manager was very friendly and helpful and spoke perfect English.