My toddler son and I stayed in Armin's apartment for three nights in November. The location was great - away from the hustle and bustle of the city center, but a quick walk to the nearest train station. It was just over a half mile. We made use of the grocery store around the corner and pizza place just down the street. The apartment itself was exactly as advertised, with a spacious bedroom and king size bed in addition to a smaller bedroom with bunk beds. Armin also provided a pack n play for my son. Check-in was smooth, and Armin was quick to respond to all my messages both before and during my stay, including giving me detailed instructions on how to reach the apartment via public transit. I highly recommend his apartment for your stay in Vienna.