I've found what looks like a lovely reasonably priced apartment in Paris for May. It is one of 5 apartments owned by a French couple that they rent under the name GAP Paris. The reviews on their website are stellar but I'd love to find independent reviews. Has anyone heard of these apartments or better yet, stayed in one?
I have no knowledge of this, but did spot this thread on TripAdvisor about GAP, that you might want to check out. One reviewer raved about it. So who knows? :-)
https://www.tripadvisor.co.nz/ShowTopic-g187147-i14-k14239689-Vacation_rental-Paris_Ile_de_France.html