Augustin's place was really lovely - it is exactly as pictured. It is a studio, but the layout is perfect and makes the space feel much bigger than it is. I spent 3 months during the summer at Augustin's place and it was perfect. The apartment faces the courtyard, so it is very quiet, but you get a beautiful French view.
The place is in a great location, around the corner from a great metro line, down the street from Parc Monceau, close to a lot restaurants, boulangeries and grocery stores. It's in the 17th, so away from tourists and crowds, but it is a quick 20-30 minute metro ride to get to the heart of the city.
It is on the 7th floor of a walk up, so really the 8th floor, so getting your luggage up and down can be a struggle. Also, it is a studio, so there is limited storage, so depending on how long you're staying it can get a bit cramped with suitcases, etc. However, if you can get past the stairs, I definitely recommend Augustin's place!