Martin's house is very spacious and comfortable. We were a group of 6 and there was more than enough space for all of us. It was also equipped with everything that you needed for a cosy stay. The house is situated near - 15 min walk - one of the main palaces and is just a 25-30 minutes walk from the city centre. If you do not mind to walk it is actually quite a nice walk. Martin is always available to help and prompt to answer your questions. We would recommend this house for anyone that is thinking about visiting Vienna.