Markus’ place is great. We had four adults and one child staying there and it had plenty of space for all of us.
The apartment is in a fantastic location. It’s a five minute walk to a major transport station where you can get underground, trams and buses to go wherever you need in the city. There are a great number of food places and two decent sized grocery stores within walking distance
The apartment has a well stocked kitchen with every cooking equipment you might need. With many places closing for Christmas and New Year we were able to cook whatever we wanted.
The checkin process was smooth with Markus providing clear and detailed instructions. They were also responsive to any questions we had. I would wholeheartedly recommend this place to anyone with the only caveat being you must climb stairs. As mentioned in the description of the place, it is four long flights of stairs with no lift. On the plus side you get some nice exercise and can enjoy more delicious Viennese desserts.