Other reviewers speak all the truth about Xavier's house. My family and I enjoy the stay. We really appreciate the spaces (a lot bigger than hotel rooms). If you have toddler, Xavier's house is highly recommended as it has all the toddler amentinities (toys, story books, stepping stool, toddler bed). The kitchen comes with all the essentials and we are able to have our home cook meals on the night we spent all the time on sightseeing and run out of time for fine dinning. There are also several umbrellas by the door entrance (I would not bring my umbrella oversee if I known that).
There are 2 groceries, 2 well established bakeries (you have to try the croissant in the morning, best on earth), 1 meat store, 1 seafood store, 1 wine store down the block, which gives us full Parisian experience and live like local. We did not take public transportation but use Uber all the time. I guess the location is very close to Eiffle Tower therefore only take 4 minutes for Uber to arrive. Some reviewers stated Xavier's place has too many personal belonging, which does not bother us, on the other hand, it makes the house feel homey (home sweet home). The elevator is amazingly small but it is a fortunate to have elevator at Paris, so no complaint. Our group of 5 just have to take different trip up and down.
The only 2 imperfect of the property is there are tripping hazard in the kid and the master bedrooms (4-5 inches different in elevation on the floor). I almost tripped over in the middle of the night as I forgot the different in elevation). Another one is the hot water run out in 5 minutes at the master shower room, not a problem in the other shower room.
Overall, we are happy staying at Xavier's place on our adventure at Paris. Wonderful memories with no regret!