We had an amazing stay 2 night stay in Christoph's apartment. Everything is just as he described. Great location: only a short walk into the city center through the Stadtpark), extremely clean and comfortable. Public transport is also nearby. This apartment is perfect for short or long stays in Vienna. Christoph was easily contactable and great with communication during our stay. He was a friendly person to meet and was accommodating for our late checkout request. We would definitely recommend staying in Christoph's apartment and hope to return for a summer visit to Vienna.