We stayed with Ulrike for a week. Ulrike is very friendly and helpful person.
Location is perfect, it is easy to get wherever you want from that place using tram or subway that is not so far. As a advantage for us was possibility to use kitchen without limits. Grocery shops are very close to Ulrike's apartment, so we had not any inconveniences during our stay with food and other stuff.
I can highly recommend everyone to stay there if you need a perfect place where to stay in Vienna.