Lovely cabin-style retreat in a safe, quiet neighbourhood (Ober St Veit), about 15 minutes on the U-Bahn (U4) from the centre of Wien and a further 10 minute walk.
Espresso machine (!!!), desk, bed and lovely bathroom was just what I needed. Restaurants are on the street, and a Spar about two minutes walk away.
You won't get much better, particularly for this price.