We've stayed on the Left Bank, in Montmartre and near Tour Montparnasse, but this apartment has to be in the best location especially if you're a first time visitor to Paris. There are bistros on every corner, the Metro is a block away, the post office is two blocks, the Louvre is about a 1 mile flat walk, the Opera and department stores are a few blocks.
The apartment is as shown on-line and you have all you need for a comfortable stay. Oh, and there's a grocery store right next door.