The place is exactly how it is described. It was very clean, the location was very good (in some streets behind at night might not be the most appropriate for families though).
We were 4 adults and a baby and we were comfortable at the apartment. The restroom might be too small if you are tall. We love to walk and since there is no elevator the stairs could be a challenge coming back to the apartment, but it is not terrible.
10-15 min walk to Sienna river, well served train station, Louvre museum and Notre Dame. Sacré-Cœur and Gallery Lafayette were not too far neither.
Arno was very nice, responded really fast, he was very polite and attentive.
I would stay again!