I had a fantastic stay in the very cute Parisian apartment. The place is perfect for a single traveller and has a lovely feel. It is simply equipped but has a decent shower, kettle and a fridge and CD player.
I found the bed comfortable and it was lovely sleeping up high. The flat is on the 6th floor so you get a great feeling of being in a Parisian flat.
Location is amazing - one minute to metro station Courcelles and it seems everywhere I'm Paris is 12-22 minutes away.
I would definitely stay again if I was to return to Paris as a single traveller.