I strongly recommend this place for everyone, how loves romantic atmosphere and wants to understand the city's soul.
The first night was rainy, and we felt absolutely unbelievable to fall asleep with the sound of drops of water on the roof.
The host is placed in 15 minutes near the city center. For 3 days we didn't used the public transport at all.
In short, if you are looking for romantic cozy place in Vienna - this is it.