I'm sorry this review comes so late, but when we left Virginia and Steve's we still had over a week's worth of travels ahead of us.
However: the apartment is great, quite comfy for four people and still feasible for 6; and V&S are lovely hosts, very generous, thoughtful, accessible and discreet. We stayed at their Brooklyn airbnb for a week and it was a truly lucky choice. A no-key, code system for the doors makes checking in and out, as well as coming and going, easy as pie; the bedrooms were clean and cool (AC and ceiling fans to accommodate all cool-air tastes); both kitchen and bathroom were also very clean and well-stocked too, which is great if you're checking in late at night and don't have time to shop for milk and coffee; and, last but not least, the little terrace at the back is a delightful resting spot.
As for position, the Avenue M stop on the Q subway line into Manhattan (or Coney Island!) is a mere minutes' walk away; the street is very quiet both during the day and at night, but just a few steps will take you to larger streets and avenues with no shortage of shops, chain stores, delis&supermarkets, ATM's, dine-in or take-out restaurants and other kinds of services (I especially recommend Lucky May's Laundromat on Ocean and M and their drop-off service for those who don't like schlepping dirty clothes around in their suitcases: leave everything with them in the morning and pick it up squeaky clean and folded at night). Thanks V&S for having us, and I wish you all the best.