Guillaume is a very pleasant and sociable host. He always replies quickly, always ready to answer any questions. He was on touch all the time. The studio is 100% what you can see on the photos. It's small, but very cosy and is located perfectly. 30 seconds walk from metro (and a 1 minute walk from Mouling Rouge) , also very close to Sacre Coeur. We even went to the city center on foot and it took us about 30-35 minutes. Sometimes it can be a bit noisy at night, but it wasn't a problem for us. We've spent a whole week in Paris living in this studio and enjoyed it a lot. I would definitely recommend staying here for anyone, if climbing stairs isn't a challenge for you :) For us it was a huge plus, as long as we find it to be great for one's health.