Sylviane was very easy to talk to and her responses were quick. She is very accommodating and allowed me to check-in and check-out at a time favourable to me. There is a great view and sunset from the balcony. The place was clean and not warm at all in late August. Going up the apartment with luggages was easy due to the presence of an up-riding escalator and lift. There is one flight of stairs you will have to descend. But by all Parisian accounts it is very convenient for travellers with luggages.
As for the location, I did not feel unsafe on my walk back at night. It is not the typical chic Parisian streets and houses you would perhaps imagine. However it still has it's own charm and is simply a different side to Paris. The food & supermarket you can find nearby are affordable. There are a number of asian restaurants around. Being in the 18th arrondissement, it is not quite as close to the tourist sites of Sacré Coeur but it was still a distance I found pretty walk-able and where I discovered some interesting street art while seeing Paris.
This place would also be great to stay at if you're looking to practice your French! Sylviane speaks good english but is helpful with French as well.
Perhaps the only thing to note is that the bed is relatively narrow, still sufficient for me but make what you will!