The apartment was cosy and clean, also artistic and stylish, with nice collection of books and albums to look through. Really pleasant to stay in after a long day outside. The location in my opinion was very good, near Gare de l'Est, the access by metro to any desired object in Paris was really quick and easy. Nearby we found some nice bakeries and a market providing fresh products.
Sonia gave very clear instructions, we found everything easily, and easily got in despite our late arrival.
The only drawback was staircase. We managed it, but it might be a challenge for the elderly.