Bright, clean, 3rd-floor walk-up Brooklyn apartment two doors down from the lively, pedestrian-friendly 5th Ave in Park Slope. Excellent location for visiting this area of NYC. Usably-equipped kitchen: for everyday cooking, I had everything I needed, and the supermarket is nearby. Anh & David were very well organized and superbly responsive; we left some notes in the apartment when checking out and seconds after I'd left a message they helped us get them back. They also thoughtfully curated leftover ingredients from previous guests, so there was not just salt and pepper, but some herbs and spices, butter, and jam already there.
I have only one complaint, which is the polyester sheets. Just can't give out 5 stars to polyester sheets. :) Especially for NYC summers, they're a terrible idea.
But overall, I would recommend this place.