The apartment itself is very nice, in the very city center with everything close (supermarkets, pubs, restaurants and sightseeing places). The area was calm but we couldn't not notice some suspect drug dealers around the quarter.
The check in was very easy, Franck wasn't available at the time of check in so he just left us the keys in the post box.
The apartment is on 4th floor but the elevator goes only up to 3rd so you have to go on foot the rest of it (and the staircase is very uncomfortable and with very small steps).
Inside the house has everything you might need : dishwasher, washing machine, coffee machine, very nice furniture, all the cleaning supplies. We liked it very much.
Pay attention to hot water, I suppose there's a boiler so ones you run out of hot water you have to wait for hours and hours till you get more, otherwise you have to take an ice cold shower (as happened to us).