Hotel-Restaurant Fritz Matauschek 

The location is away from the center but there's a U-Bahn U-1 station steps away and also a #10 tram stop. I had a one week transit pass so I could take trams and U-Bahn all the time. Take the U-3/U-1 U-Bahn to and from the Hauptbanhoff in about 30 minutes. Schonnbrum palace is a 15 minute tram or 30 minute walk away. Stpahplatz 15 minutes on the U-Bahn. The neighborhood is not posh but more of a perfectly safe appearing working class/immigrant neighborhood. That means there are small and larger supermarkets nearby, banks, stores, kebab place etc., which I all find interesting and useful. Maybe no posh little bars etc. like in Mariahof where I've stayed before. I chose a room off the street with shower/toilet down the hall. Everything was simple and new in the small but adequate room. It had a safe for valuables in the closet. Comfortable twin bed. It was fine. I looked in an open en-suite bathroom room and everything was new there also. The breakfast was not posh but fine - German/Austrian style, served not buffet style - check the photo. The owner/managers were friendly and accommodating. Excellent choice for travelers with a transit pass who want to save some money.