Our stay at Sigrid's was lovely. She's a consummate and accomplished host.
The room was large, bright and well furnished.
The location is also excellent. A few minutes walk to a U-Bahn station which is literally around the corner. It was a 20min stroll to the conference centre (Austria Centre, Vienna) and perfect for this; otherwise just 2 stops on the U1 line.
It is also close to Prater on foot.
The daily breakfast was a highlight, wonderfully presented and complete with homemade marmalade and preserves.
We enjoyed our stay and would highly recommend Sigrid's place.