I highly recommend Jafar's apartment - it was the perfect size for two people for a weekend trip and an easy walk into the centre of Vienna. It's in a neighborhood with good ammenities if you want to stick close to home for food and drinks, and there's a lively energy in the evenings so if you are looking for somewhere really quiet this might not be the best bet, but for us it was the perfect mix of nightlife, comfort, and daytime amenities. Jafar was a great host, even checking up on us because we were arriving to the city late and he wanted to make sure we didn't struggle with the self-check in process.