Daniela's flat was adorable. It was comfortable, very clean,and the host is very very kind. It's a good solution to spend a few nights in Wien (it's excellent for 2 people, but if you use it only to sleep in, it will be enough even for 3/4 people!). It's at short distance from the mall, from the subway and even from the city center. If you decide to visit Wien by walking around (and you will do it, 'cause this city's impressive), you can do it easily. I walked to the center every day and it took 15-20 minutes. I asolutely recommend it