We stayed at Lydia's place for four nights, and it was a wonderful experience and a perfect stay in Vienna. The apartment is perfectly located, near shops and hip bars, and you can walk 20 minutes or take public transport to the city center. The apartment is very clean, furbished with new furniture and equipped with everything you might need, including breakfast groceries. We communicated with Ruth, who was lovely, quick to respond and very accurate in her instructions, which made the stay more agreeable and stress free. I can high recommend staying in Lydia's apartment.