I really loved this flat even if we had some little problems especially at the begins. Here my positive/negative notes.

Positive:
- located in a good position
- wide enough for 2 people but also for a soirée with a couple of friends
- lovely kitchen
- very small room but also cosy
- nice living room with a great view on Paris roofs
- original and nice mobilia

Negative:
- 6 floors without elevator (but it's quite normal in Paris)
- we didn't met the hosts and they didn't left us any spontaneous welcome message or present except for a photocopy of a house rules (my sister in a different flat in Paris had a bottle of wine and a French paté from the kind host!)
- the internet connection is a free wifi connection coming from outside the flat, therefore it's quite difficult to catch the signal and every time your smartphone or your computer go in stand-by you loose your connection and you have to start again. Quite annoying!
- when we arrive the flat was ice-cold! There's any central heating but just an old electric radiator and another kind of radiator for the room, but no one had turn it on for our arrival, therefore the apartment was REALLY cold. After a couple of days we stopped freezing and everything goes well
- some of the chairs and other stuff in the flat were completely broken but in general the others were cool in their naive essence that we loved

Will I recommend this flat to a friend or will I come back? Yes! Hopefully with a better wifi connection and in a warm season :)