Didier's place was great to stay, with a couple of good bagel places for breakfast nearby (we found Bagel Factory to be the best). Only a couple of blocks from the 4th and 9th subway, which takes you to Manhattan via downtown (~30-45 mins depending on where you stop, but easy with no transfers). Quiet suburb, with not many restaurants nearby, but another block from subway is 5th street has many (though we mainly ate in Manhattan).
Apartment is well appointed, clean and newly furnished. Didier has obviously put much work into improvements based directly on visitor reviews.
He always responded reasonably to communication and accommodated extra requests of ours for our stay, however we did have to remind him of these when we arrived. He seems like quite a busy guy, so just make sure you remind him of any extra requests (additional beds etc) close to your stay and you'll be sorted!