We stayed at this wonderful place for 4 nights in late September and early October 2015. Our host, Klaus, was extremely helpful. The rooms are very clean, large, quiet, and comfortable. The breakfasts are excellent. The location is very convenient to public transportation, and many Ringstrasse sights are within easy walking distance. The Vienna Airport Lines bus stop is about a 6-minute walk. The price is very reasonable and there's free WiFi in the rooms.