The first thing to know about Eva's apartment is that it is really practical for getting around town - the U-bahn station is literally outside the front door and you can be anywhere in the city in a few minutes, so don't make the mistake of thinking you'd be better off in an apartment right in the centre of town!
Secondly, it's a fabulous place with a unique design - massive skylight windows stretching the entire length of the ceiling in the bedrooms, a really great bathroom with a massive hammam-style shower, and a big outdoor kitchen and living space that is both covered from the elements and heated if the weather is cold.
Eva is a really good hostess and I can't recommend this apartment highly enough to anyone who wants to discover Vienna but have a nice place to come back to at the end of the day.