Me and my boyfriend stayed at Corinnes Apartment for a long weekend. Its quite small but for 2 people for a couple of days it's ok. If you are in Paris for the weekend, Corinnes apartment is a great place to stay since its located perfectly.
The Apartment is right under the roof, so it was quite hot. The AC didn't work but there was a fan in the apartment.
The apartment is on the 6th floor. So to reach it you have to walk up like 120 Stairs. That can be quite exhausting.