The apartment is exactly as described.
Studio sized apartment with two beds, great kitchen, and an awesome terrace.
It felt very secure. in the center of an apartment building behind 3 or 4 heavy locked doors. Really all of Paris felt very secure as long as you are conscious of your surroundings.

We never met Diego but his business partner, (I think) Mikel was very nice and welcoming. (also spoke English very well). He showed us the apartment gave us some quick tips about the neighborhood and left us to it.
Wished we had stayed longer was our only regret