Mafi's appartment is perfectly located, right in the heart of Vienna, in a very quiet street, in a traditional old Vienna building. Mafi welcomed us, even though we arrived super late (11pm) and kindly let us stay in the apartment after check-out time on our departure day because our flight was again late in the evening. He sent us recommendations on the best things to do and remained available if we needed it. A great host! The place itself is big enough for 2 couples, there's a comfortable living room and the bedrooms are big and the beds really comfortable. The only "down" of the place is the small bathroom + restroom which means a bit of organizing in the morning and being comfortable enough with your friends to share a toilet located in the center of the apartment. But the shower was warm and comfy. We had a great stay and would totally recommend Mafi's place to anyone visiting Vienna!