The place was exactly as described. It is small, but perfect for a person or couple.
I was a bit worried because the bed was a futon, and I was there for 3 weeks. It was remarkably comfortable although a bit short (my feet just hung off at 6' tall).
It is easy walking distance to: grocery stores, metro stations, Velib bike stops, the Eiffel tower, many bakeries.
The apartment came stocked with many things (toilet paper, shampoo, some food and condiments, even coffee!).
The hosts were very friendly and willing to meet our needs (later than normal checkout).
Direct metro to most of the famous sites.
One minor thing to note (it was not a problem for me), the walls are not well insulated against sound and you can hear most things from your neighbors.
Would 100% stay again!