Marina is an excellent host, speaks English very well, cares about her guests and responds to messages right away.
The apt is exactly as shown in the pictures. The beds are comfortable, and the place overall is welcoming. The apt is on 2nd floor and the building has elevators.
The street is a little shady - there is graffiti on the walls, and with construction going on, there's a mess on the street. However, at no time did I feel unsafe - even though a few nights, I returned to the apt after midnight.
There are 2 Underground stops next to the apt, one on U3 and the other one on U4. Both are about 10-15 mins walk depending on your speed. There are a couple of cafes right next to the apt. There is also an Italian place right next by the apt. Mariahilfer street is a 5 min walk and it has many stores for shopping, and fast food restaurants like Nordsee and Kebab shops for quick eats.
Overall, a good enough place with an okay neighborhood.