We spent two nights at Niko and Jeli's place in Vienna. Communication was flawless and easy, check in and check out was a breeze. Use or washer and dryer was a huge bonus, as this was the middle stop of a longer trip.
The flat was even bigger than imagined in the pictures. We were three adults, so having two separate rooms and separate WC and shower was very convenient. The apartment was a 5 minute walk from the metro and a short ride to Hauptbahnhof or the historic city center. Restaurants and grocery stores nearby, even a weekend fresh market.
Would definitely recommend and stay again!