Great place.
The location is perfect both for walking in a great neighborhood and hopping on the Metro or RER train to get around Paris. There's a great bakery right outside the front door, lots of cafes, and several grocery stores that are open until 10:00 pm if you're planning to cook for yourself (or just need a nice cheese and bottle of wine to finish off a day of sightseeing).
The apartment is in a central neighborhood, but is very quiet because the windows overlook a central courtyard rather than the street.
The apartment itself is super clean and stylish.
There are windows on both sides of the apartment, so you get beautiful breezes to beat the summer heat!