Nice area, well located, not too far from the center, next to a shopping center and close to the Montpelier district, with nice cafés, bars and restaurants.
The access is easy as the hosts do everything to be clear about it, with a keyless door lock.
Once in it, the place is a bit dark and humid as it a basement flat, and it could be cleaner. But the hosts are good, they listened to what was wrong with it and i think they made some changes about the light, the humidity and the cleaning and offered me a compensation, which is a nice gesture !
For the quite low price, I'd say go for it if you go with 4 or 5 friends