This apartment was perfect for our family of four (including two teens). This was the kids' first time in Paris, so we did all the major sites. The Metro 1 line, literally steps from the door, was perfect: it goes right along the Seine and then up to Arc de Triomphe. One stop to the underground entrance to the Louvre, two stops to the Tuileries for a stroll through the garden, a couple stops in the other direction and you're in the Marais for dinner. You get the idea. Yet, for such a central location, we slept perfectly at night, thanks to the comfy beds and air conditioning that allowed us to keep the windows closed. This was absolutely key to our comfort and happiness during the day, as it was HOT in July. AND the internet worked flawlessly, which helped with our data usage and kept our teens content.
The apartment is in a nice smallish building up two easy flights of stairs (there is a lift, but we only used it once to move our luggage). The interior architecture is lovely, the furniture simple but functional. We even pulled a couple of stools onto the balcony one night and watched the people streaming by. In the immediate vicinity, we frequented the G20 grocery store up the street (5 min), the organic grocery store across the street, Cafe Blanc, and the Taverne de l'arbre sec. There were also bakeries close by and lots of take-out options we didn't try. It was so easy to find food in the neighborhood.
Check-in was super easy. Eric responded quickly to text and phone (once he answered while on his scooter--yikes! Now that is prompt!). Everything was clean and comfortable and just what we were looking for. The only thing that wasn't totally up to par was the slow drain in the bathroom...you just couldn't let the water run for more than a second. But it did drain eventually and we weren't bothered by it. We did one load of laundry while there and some ironing, so that all worked. We couldn't figure out the coffee maker, but in retrospect I wonder WHY we thought we'd make coffee while surrounded by gorgeous Parisian cafes?
I highly recommend this apartment, particularly if seeing the central sites is your goal.