Communications with the owner, flexibility, safety and location were all perfect!
It's a compact apartment that contains everything. It's on the 5th floor (no lift) of a building near a metrostation, a supermarket and some small eateries. Nights are quiet.
Two remarks: only book if you're under 1.80m (six feet), otherwise your feet will stick out of the bed plus you will not be able to stand up straight in the shower. ;)
And there's a definite (long time) smokers' smell in the apartment. Unfortunately I read just now, afterwards, that others have mentioned it before. It's not (as replied to in an earlier post, or in the welcoming letter in the apartment) part of the smell of the flooring (sisal), it was definitely also very smellable in the bedsheets and provided towels.

So: if you're tall and a non-smoker (that minds): book something else. But if you're under 1.80 and smokers yourself: an absolute recommendation! The apartment was complete and very well located! Gaelle communicates well!