The rooms here are pretty basic. The staff of the other hand are fantastic. I have never seen more helpful hotel staff ever. Any questions or concerns will be handled immediately. The hotels website also gives you directions on arriving from the airport. As previous posters have stated, the area isn't great, but just keep to yourself as your travel back to the hotel at night. There are lots of food options close to the hotel. Walk out the hotel and turn left towards Omonia station. Close to the McDonalds is a great place for gyros and rotisserie chicken. There's a grocery store close by as well. Ask at the front desk for directions.

The Hotel Vienna in Athens are a hotel of Vary`s.

It is Very 1970s, Very Old inside and the street outside is Very noisy. BUT it is also Very Cheap, Very good value for Money, Very close to the metro, has Very friendly staff and most importantly is Very clean. It is not in the best part of Athens as there is some dodgy people hanging around in the area, but I never felt unsafe.

Hotel Vienna is very centrally located in Athens, but being near Amonia Square, the area is not the best. However, if you follow the tips of the reception staff regarding streets and areas to avoid at night, you'll be fine. It is an older hotel but the rooms are comfortable and clean. The breakfast is an adequate continental. There is a small fridge in the room and free internet, even with their computer. The street can be noisy at night when you're trying to sleep.

Stayed two night at this hotel for a citytrip. Although (as mentioned before) the area is a bit seedy, it still is pretty close to all you want.
The staff is very friendly helping you out where to go and how to get to places.
I would defenitely stay there again for a city-trip.