Its heating is not warm, please do not choose it if you are coming to Vienna in winter!! If you're not as strong as a bear, you might catch a cold. It's winter, after all，I'll talk about my experience：
1. The butler like a money robot when I have a passport problem and can’t arrive that I need to change my itinerary or cancel or get some help, He can‘t do anything. Ok,Let‘s fine, it is maybe the rules and I did break it. I can take that.
2. We arrived in Vienna very late, at one o'clock in the morning, and went to sleep after simply allocating a room. In fact, my friend who lived in the second master bedroom was a little cold that night, but we chose to forgive and said that we would not make trouble. The journey was already very complicated. . But on the second night, the heating in the second bedroom and the small room was colder than the previous day. I reported it to the housekeeper, and he asked me to adjust some things and observe it. But it was useless, and after I sent the picture, he found that it was not a problem that can be solved by a fool's operation, so he lost his patience and refused to answer.
3. My friend and I had a cold night and didn't want to add our own quilts because the existing quilts were thin and the quilts in the closet didn't look clean. So I asked the housekeeper to complain about the lack of heating. He said that he checked the next day and thought it was not a problem, so he didn't reply. So I think he didn't double check, or he just thought the order was money made and could be closed. I am very angry, why did not enjoy the service after spending money, Vienna needs sufficient heating in winter! ! Some of our rooms obviously felt not as warm as normal heating rooms, even cold, which was wrong. I applied for a refund, and he began to shirk responsibility.