We stayed at Ludovic's managed apartment for 10 days, at the very end of July and the beginning of August. Good location located a 15 minute walk from the heart of the Marais, a wonderful district full of shops, restaurants, parks and much more. The apartment itself was good (though not having air conditioning proved challenging when we stayed there even though they did provide 3 small fans). The apartment is nicely appointed. Good linens and towels especially. Dorssaf, who greeted us, provided lots of advice on what to do and where to go while in Paris!
Upon arriving to the address, however, we discovered that the building was under renovation. Scaffolding covered the exterior, big dumpsters parked right in front. Entrance was run down and the electricity was not working making it very dark.
At the end sat an wooden staircase covered in dust. As we climbed up to the second floor (the elevator starts one floor above ground level), we were surrounded by stained walls, pealing paint, falling plaster and broken windows. Stacked by our front door were piles of construction materials.
The court yard was under construction. During the first couple of days, there was construction starting at 8AM. Noise and smell of tar was our wake up call.

Kitchen. There is NOTHING in terms of basics: no sugar, salt, pepper, oil, coffee, garbage bags, paper towels or toilet paper (they only provided 1.5 rolls for 3 people for 10 days). They offer a cleaning kit for purchase at 13 euros that includes 2 tablets for the laundry machine, 2 for the dishwasher machine, sponge and 1 garbage bag.

Ludovic apologized for the work going on at the building (which was nice) and he promised to have the construction materials removed from our front door. It took 4 days.
If you do decide to stay here, I suggest you review the listing carefully and make sure that the above challenges have been addressed.
Fortunately, we were in Paris and had an amazing time!