Marc was a great host - charming, handsome, smart, great sence of humour, great social skills, etc. Our room was very quiet, bed was excellent, shower was great (water pressure) and location was unbeatable - 2 steps to the nearest metro station and 15 min walk to RER, very close to Jardin du Luxemburg; Monoprix and Bakery were 2 steps away from the appt.
Don't forget, however, that you do not rent a whole apt, it's only a room, so you share toilet, washroom and kitchen with the owner. There was no real oven or kettle in the kitchen, only a hot plate and a microwave oven. The worst of all for us was the absence of relaiable Internet conneciton - it worked on and off, and we couldn't do check-in on line, and other stuff we needed to do badly on the Internet. I wouldn'r recommend this room to singles, as there are lots of single rooms in 3** hotels from 82-97 Euro/night (maybe not in the 6th arr), with private washroom and daily change of towels, but I would definitely recommend it to couples who want to save money, don't mind sharing space with a stranger and who absolutely have to live in the 6th arr, it's a certain bargain!