Spent 4 nights in Alex's place during the covid period. Easy check-in, easy to follow instructions. The apartment looks just like in the pictures and it was in perfect conditions and super clean. Very good quality linens and towels provided, included also toiletries. Well appointed kitchen and the apartment has a truly great design, nice furniture and lots of attention to detail. Very good mattress and pillows as well. Beautiful and big bathroom with rain shower. Very good wifi and it all went very smoothly. The apartment must be around 30 m2 (Extremely comfortable for 2 people). The area is great, in the center of everything and lots of great restaurants and bars within 5 minutes walk.
The only thing to note to other future guests, in particular to those sensitive to noise, is that the windows in the units are very very thin and hence there is a lot of noise coming at night (this is downtown Paris). If you are a light sleeper this may not be a place for you. On the other hand, what we did is moving the mattress to the living room and closing the glass partition and curtain and we could not hear a thing. But the noise in the bedroom can be high.
Highly recommended.