The apartment is very nice, nearly everything as advertised ;-) Although it technically has place for 5 people to sleep, this wouldn't be very comfortable, but for 2-3 people it should more than OK. Despite the lack of AC, the temperature inside is nice, even on hot days (30°C). The location is perfect, with Naschmarkt within 3 minutes walk, and city center within 10 (or even less using great viennese public bike system). Michael was a very friendly host, and was responding very quickly to my messages, but I wish he'd be a little bit more flexible about check-in/check-out times. Another minor downside was WiFi, which worked well only part-time.