Have visited this apartment several times and it is always a great stay, it is close to several metrostations, restaurants, bars and any other amenities one might wish for, will gladly visit again if or when time and opportunity permits it.
Do note that the intersection between Rue des Martyrs and Rue Yvonne le Tac where the apartment lies is a rather lively and active place for most of the day, so one does naturally awake early by the sounds of the city.