Everything was just as expected. Marcus's apartment is cosy and quiet, centrally located, and fully equipped. The building even has an elevator, which was perfect. The location was excellent: the main train station is just around the corner, which means easy access to public transport and also shops and restaurants open every day.
Marcus was very flexible with our arrival and departure, with understanding for our needs. He was very easy to communicate with, we hope to come back when we are in Vienna again.