We were a group of five who stayed in Michael & Mathias' apartment and we loved it. The apartment is very well situated, within walking distance to the centre of town and all important sites. It is newly renovated, very modern, spacious with high ceilings. The apartment was extremely clean and linens and beds spotless and comfortable. While there is a comfortable sofa bed in the living/dining room, the apartment is more suitable for two couples to allow better use of this space. We met Mathias who was very generous with his time and gave us great suggestions for cafés, restaurants and concerts. We also greatly appreciated that he allowed us to leave our luggage in the apartment after the checkout time. We highly recommend this apartment and would love to stay here again should we have the chance to visit the beautiful city of Vienna again.