Staying with Karl and the other wonderful guys at Czerningasse 23/10 was an absolute treat. I enjoyed the relaxed, comfortable atmosphere and having access to a fully equipped kitchen. The guys are all really interesting and kind, and the room itself is small but thoughtfully put together. It's perfect for a single guest. The location is really ideal, with everything you need right near by, as well as easy public transport connections to the rest of the city. Some nice cafe's, bars and clubs in the area too, if you're into that, but also there is a huge public green area and funfair with rides 5mins walk away.