Brilliant. Book this apartment. It is 200 metres from the Eiffel Tower. Superb, safe neighbourhood with friendly restaurants, grocery store, bakeries. Alexandre is fast and very welcoming. The apartment is small and up lots of stairs (but this is normal in Paris).
I will put a few 'to be improved' comments just to show this is a real review. The apartment is clean but strangely has no curtains on most of the windows. (I hung sheets over them). The linen could probably do with a new set.
Otherwise this place is superb. Book it. Did I mention that is 200 metres from the Eiffel Tower?! You don't get a much better location anywhere in the world, let alone Paris!