Rainer was amazing. Whenever there might have been an issue or a general question about living in Vienna or the apartment, I could ask Rainer. He made my stay effortless and accommodating. It's also super easy to commute from the apartment, and the train station Praterstern is close (e.g. if you need to go to the airport by train). The apartment had everything you would wish for a long-term stay. Next time I have the opportunity to stay in Vienna for longer, I would choose to live in Rainer's apartment. I couldn't have been happier with my choice.