I thank Michael and I recommend him to all of you reading this. I'd had a terrible experience with the previous host - who canceled my reservation with no reason and two days before my flight - so I was discouraged and anxious. Michael was always very nice and communicative, ready to help with everything. I felt I was in good hands. The apartment is really nice, clean, equipped with everything, the furniture is new. The location is just perfect because in 3 minutes you get to the U-Bahn (but if you want to you can just walk to the town centre) and even though it's so central it's still very quiet. I will definitely contact him again if I come back to Wien!