Mont Sauveur is located in a nice French neighborhood with plenty of cafes, boutiques, and markets. It was in an inner building behind four locked doors. We felt very safe in the apartment and walking in the neighborhood at night. Metro stops are within a few blocks. One thing to note about location is that the apartment is located on a quiet street which closes during the day and evening. We had booked a tour and a taxi, and both had to pick us up and drop us off one or two streets over, because they could not get through. The apartment is small, and the person who sleeps in the bed away from the door will have to climb over the bed to get out of the room, as there is not enough room to go around the bed. We did not use the kitchen other than the refrigerator, but it appeared adequately stocked with dishes and utensils. On the negative side, the furniture in the apartment is a bit more worn than the pictures show, and the apartment did not seem to be quite ready for us upon arrival. There were four lamps in the two rooms, but only one worked. The others were broken or didn't have lightbulbs. There were overhead lights so we were still able to see, just not read at night. We also didn't have pillows for the pull-out bed. We were told that they could get them to us on Monday (we checked in Saturday) but since we only needed the extra bed for the first night, we made do without. Except for these minor problems, the apartment and its location served us well. Ludovic was quick to respond to us when we were booking and to recommend a few other alternates when our first choice was not available. I would consider using him again should we return to Paris.