We really enjoyed staying at Silvia's. The building had romantic elegance to it, and the apartment had lovely tall ceilings, wood floors and sufficient space. We enjoyed the neighbourhood being close to the Augarten park, and far enough from the Center of the city not to be noisy, but close enough to walk to the U metro and get into Zentrum in approx 25min. I walked along the river into Zentrum one afternoon, and it was amazing. We recommend this place to others! (Please note that you will have to send your ID over the internet prior to accessing the apartment, which we recommend you do through the AirBNB app as we had no problems with it that way.)