I spent the month of October 2021 at this apartment and it was very nice. The location is fantastic. It's an 8-minute walk from the Alésia métro on line 4. If you fly into Orly, take the Orlybus to Denfert-Rochereau and then take the métro two stops. That's very easy. There is also a fantastic restaurant Le Bouquet d'Alésia near the métro, and a great patisserie next to that.
Check-in could have been better. I flew from the US east coast and landed at CDG at 6am. I was not welcome at the apartment until 11am and I was not allowed to drop off my bags, so I was stuck for hours. Fortunately, it wasn't raining. Also, I was only given one set of keys and told that was all there was. When I asked the contact person for another set, he dropped off a second set. This is a 2-bedroom apartment after all. Two sets of keys should be provided at check-in.
I would probably have given this apartment 5 stars if I had stayed there for a week or two. Staying for a month without a clothes dryer and an oven was not ideal. A drying rack and a towel warmer helped with the laundry. The stove has just two burners. Several friends came to visit and I was frequently washing towels (there should be more) and fitted sheets (I think there were only two). There were probably eight duvet covers though!
All in all, I had a very pleasant stay. I would stay there again for a shorter time.