We cannot be more pleased with this apartment and Martin/ Caroline's hospitality. The property is beautifully and tastefully appointed, and Martin/Caroline are the most amazing hosts! They really took the extra mile to make sure we had a good time: from the train station pick-up, helping us book orchestra tickets, to amazing restaurant recommendations, and much more! We were lucky enough to be the first guests staying at the Sisi apartment and even got to celebrate the launch of this unit with some champagne ;) If we ever visit Vienna again, this will undoubtedly be our first choice!! We would highly recommend this to anyone visiting Vienna and can't wait for our next visit!