The stay at Jean Luc's apparment was great. And all you see in the pictures is exactly how the flat looks like.
The locatios is really good: 3 min on foot to the Luxemburg gardens, 7 min on foot to the Pantheon, 15 min on foot to the Louvre or Notre Dame, 20 min on foot to the d'Orsay....And if you oreffer to use the metro, the station "Odeon" is 3 min to the apparment.
As others have point out, the flat is on a 6th floor, but elevator gets to the 4th. For us was not a problem. Plus, then you get a great view of the dome from Pantheon, the Odeon and Sacre Coure (in the distance).
However, been on the top also has a small negative point, part of the celings are low (specially in the bathroom, but not the shower), but up to 180-185cm will not be a big problem.
The main room is spacios, and upstairs there is also enough space. However not that much for clothes, but that is a minor issue.
The appartment has natural lighting and many windows, but part face a courtyard, and even though the other face the street, at night is really quite.
There are also a couple of supermarkets in the area, and restaurants. The kitchen, even though is a bit small, has everything for cooking.
So, yes, if you want a nice stay in Paris, i recommend to rent this apparment.