Alain's place is in a very convenient location. It is very close to several Metro stations and the Montparnasse rail station is a few blocks away. Although it is on the sixth floor, the elevator makes the ascent much easier with luggage. The sofa beds are quite comfortable. The kitchen and bath are modernly styled. The apartment is off a more quiet side street so even with the windows open, there is not a lot of street noise.
Alain met us as we arrived and gave us some instructions on how things worked and where we could find groceries, bakeries and restaurants. He was also available throughout the stay for questions, communicating through Airbnb messages or his local phone number.
We would use this location again if we were to come to Paris for a length of time again in the future.