Alexandre's appartement is nice and cosy and very centrally located. It's not too big but absolutely fine for 2 people or, as was the case with us, a family of 3. It is not really possible to have a dinner inside the appartement (as it's not so big), but really that's not necessary: tons of restaurants, bistrots etc. in the neighbourhood.
With its windows to a backyard it's absolutely quiet, we didn't have any problem with regards to noise.
We already arrived at 13:00 in Paris and Alexandre was able to give us the appartement without any waiting time, this is something that I was very glad about.
So all in all I can absolutely recommend this appartement !