Katharina & Peter were friendly and accommodating hosts. They responded to my messages within an hour every time and showed us how everything worked in the apartment when we arrived. They provided a map, city guide, a list of local amenities and many information leaflets. They were attentive asking us if there was anything in particular that we wanted to know about, or find, during our stay in Vienna. The apartment was very spacious and clean with everything you might need for a visit to Vienna. We were a party of 3 who fit incredibly comfortably. We liked that we could all sleep in a separate room/on a separate bed (including the sofa-bed in the living room). I only wish we could have stayed more than one night.