This apartment is even more spacious than the pictures let on. It has obviously been carefully and thoughtfully designed. The location is right on the border of Clinton Hill, accessible to lots of great restaurants and bars (and playgrounds, too, if you need). The apartment itself is up a steep-ish set of outdoor stairs on the first floor of a brownstone. We stayed there with two small children (3 and 1) and while I wouldn't say the apartment was a good fit for kids that small - lots of sharp edges and fragile items right at little hand height - Emilia and Michael were themselves very welcoming, including setting up a cute sleeping nook with an air mattress for my older child, and stocking the fridge with breakfast items (yogurt, eggs, butter, etc) which were very appreciated! They were very prompt with messages and on hand to check us in.
One issue we had was with privacy while staying there. Either Emilia or Michael entered the apartment while we were not present, without asking us or even letting us know ahead of time. For us this was very upsetting, and we ended up checking out a day early, although we were not refunded any of our stay.