I was living in Erich’s apartment for 3 nights with my family.
Apartment with three bedrooms which’s very comfortable for accommodate a large group, it more than enough space for 6 of us. All equipments are in good condition, kitchen’s stocks was enough and very useful; you might feel like better than in your own house. We really enjoy the time here.
The location is good where only take few mins walk to train station, you can go everywhere very easily. Attractions are very close to apartment with walking distance to Opera, Hofburg, and only take 20 mins walk to St. Stephen's Cathedral (Stephansdom).
There is super easy to found supermarket SPAO just downstairs in the street, which even operated on Sunday!!! (many shops and supermarket was closed on Sunday)
That is worth and you will not feel regret if you choose Erich's apartment in Vienna!