Paris is large complex and seductive. You NEED help.
Antoine can open up Paris, in english, quite effectively, to the common tastes.
His partner can provide in french the nuances that connects your own tastes to the common tastes as above.
You get a comfortable, secure place overlooking half the city. They provide a remarkable balance of enough info and material to get you quickly oriented without stifling your own sense of discovery.
They are tolerant but curious about you. You do feel comfortable and that opens you up for a fuller experience. It will be OK to take some chances because your back is safe with them. Beware of an attractive location offering only a fold out bed and reduced privacy; you NEED to wake up refreshed to face such an awesome city.
It makes it quite compelling to return (with them) for another visit.
Now that I said so, it will be more crowded and difficult to book with them next time but encouraging more places like that will be better in the end.