Nadia's place is great and very conveniently located to Reed Messe Wien Exhibition & Congress Center, Messe-Praterstern metro station, Billa (grocery store), and other restaurants. The apartment is on the 5th floor with no elevator, but it's not a bad climb. It was very clean and cozy, with all the amenities mentioned in the details. Daggy/Nadia are quick to respond to emails. They were both very hospitable - there was a gas issue in the whole building that limited hot water - and they did their best to provide better accommodations. Great place; super hosts!