This place is very cool and located in a very good location - funny enough it was 5 minutes away from the hotel where I stayed with my parents when first visiting Paris as a kid back in the 1990s.
As other people have said, the place gets hot and there is not a lot of ventilation. However, Jules supplied a fan, which was very helpful to make this better.
There is a TV with a "smartbox" allowing us to view a bunch of French TV channels, as well as accessing Youtube on the TV.
There is also a super cute kitchen, with a fridge, microwave, stove, and even a dishwasher. There is only one chair to sit though, so if there is two of you and you want to have meals at the flat, some flexibility is required.
There are a little quirks with the desing of the bathroom, with the shelves making it difficult to use the sink (wash your face, eg), but nothing major. Also, the listing mentioned "shampoo", but the only thing on the shower was a refilable container so it was not easy to see what was inside - again, nothing major.
Highly recommended place overall.