We had a wonderful time. The brownstone is not new and shiny, but it is roomy, homey, clean, comfortable, and well equipped. The subway and bus stops are just steps away, making it easy to get around the city. We found a great market, bakery, bagel store, and restaurants within easy walking distance.
I can think of only a couple of minor negatives. The front door stuck (probably because it rained almost every day we visited), making it very difficult to open and close (I have a bruise on my hip from banging it against the door). There was also a fair amount of street noise, especially on the weekend; light sleepers should choose the back bedroom, which is quieter.
Trang responded quickly to questions and was a friendly, lovely host. There were no booking conflicts, so she kindly allowed us to check in early and check out late, which we greatly appreciated. All in all, I'd happily stay again!