The apartment is in great location - short walk from U-Bahn and City Bikes, very close to trams, and in a walking distance from many tourist attractions (museums, Hofburg, Opera, St Stephen's Cathedral, etc.). The area and the street are quiet though.
It is indeed cosy and bright, with a comfortable bed and all kitchen amenities (including an espresso machine).
Arabelle is an excellent host - welcoming and cheerful. What we appreciated most were the flexible check in and check out times.
Overall - highly recommended for couples who enjoy active sightseeing.