I have stayed in Joel's place for 5 nights. I enjoyed my time there and I think it's a good place to stay. I will write the things that I liked more and liked less.
First the host. Joel is a very nice and caring guy who really wants you to enjoy your time. He will help you plan your trip, spend time communicating before you arrive, wine and chocolate and cookies as welcoming presents, he even took me for a walk around the block for good places to visit. You feel like you are getting "inside" information from a local and those tips were indeed helpful. Check-in and Check-out times are flexible.
The surroundings: Located on a main street of the latin quarter, it is an excellent place to stay. Within walking distance: grocery stores, pharmacy, wine store, cheese, chocolate, food options, coffee, bars, pretty much anything you can hope for when going for a trip. Within 10-20 minutes walking distance: Pantheon, Notre-dame, Luxembourg gardens, and more.
The apartment: It is located on the third floor of a building with no elevator. For me it was no problem at all. Below is a very lively street, so it will be noisy. In my opinion, it is much better to be within walking distance to a lively street with a bit of noise (not unbearable) than be at a remote location that is quiet. On the other hand, the smell of smoke from the fireplace (even when inactive) is strong. It bothered me at first, I personally got used to it after one day, but if you’re sensitive to smoke then it might be a problem.
The features: There is a kitchen, bathroom, closet, the usual things. There is a coffee machine with capsules, normal coffee, TV infront of bed, fully functioning Wifi, place to sit with your laptop. No breakfast is provided but you will find some groceries (eggs, butter, etc) to make one.
My negative: Bathroom door doesn’t fully close, not a problem for me since I was alone...
Summarize: I enjoyed the apartment and it fit all my needs. Thanks Joel!!