It was a nice clean flat and very Parisian; a 5th-floor apartment in a lovely old building overlooking a narrow street. It was in the heart of the city but noise was not particularly an issue. Lots of natural light. Kitchen had all you needed. The bathroom was small. The living room had a sofa/futon and a couple of chairs. Bedroom was on the small side, but it had a nice desk if you wanted to write or use your computer. The mattress on the bed was soft. The host was very accommodating and provided a print-out about nearby restaurants and other places a traveler might need such as a pharmacy, bank, grocery store, etc. There also were guidebooks and maps in the apartment for visitors to use.
There is a nice chocolate store on the walk to the Port Royal RER stop.
It suited us for our four-night stay in Paris.