Really great location. It's close to many restaurants, close to a market and a convenience store, and the train station. You can walk to the Louvre, Musée d'Orsay and Notre Dame from the apartment. There is an especially beautiful park near the Louvre. It's close to the Eiffel Tower as well. Last time I was in Paris I stayed by the Eiffel Tower and I will say I prefer this location better.
As far as the apartment goes, the bed is comfortable, the bathroom is nice (Although our hot water suddenly went out as I was showering so that was a bit of a shock. It was back the next day though.), the kitchen is stocked with pots and pans and a coffee maker, but it is missing the coffee, tea, salt and pepper, or any other cooking essentials which is a bummer when you are staying for a short time and don't want to buy these things.
We also checked in early and the place was clean when we arrived at around 1pm.