Nice and cosy apartment overlooking a lovely little cobblestone street. Its a secure place with 2 keycode gates to get into the building and multiple deadbolts on the front door. Check in has clear instructions on getting inside the building and retrieving the keys but didn't say which apartment it was - it's the first on the right up 1 flight of stairs.
The mattress is a bit thin and there was a party on the Sat night but was able to sleep reasonably well. The shower knobs are tough to work out but can get the hot water flowing with enough fiddling. Lots of useful things to use for your stay too - the umbrellas came in handy for me.
Location is good, I enjoy walking so normally do that in the morning to where I want to go within Paris and catch the Metro back in the evening. You'll probably want to catch the lift out of Abbesses station, otherwise its a lot of stairs up! And then, one final set to get back to the apartment.