The place is a wonderful duplex, very comfortable for a group of up to 4pax. The apartment block has a lift, which is great when it comes to baggage, and location is within 15- 20 minutes walk to many tourist locations which is convenient
There are 2 supermarkets nearby and plenty of restaurants around.
The amenities are a bit basic, so if you are coming in during winter and checking in late, make sure you bring bath gel, shampoo, coffee, etc. There is one rubbish bin and no extra rubbish bags, and so bring 2-3 bags from home if you are staying for more than 4-5 days, so that you don't need to buy extra rolls in Vienna.
Great place overall in a good location, and Team Richard was extremely responsive throughout my 2 weeks stay.