We are a family of three (husband, wife, and 15 month old child). We had a far better experience in this hotel than many of the reviews posted by other reviewers. When we arrived (at 7:30 AM), they already had our room cleaned and ready for us to check in. This was an excellent introduction to our stay with them. Furthermore, the room was clean and cozy! Although it wasn't big like rooms in the US, I did not feel claustrophobic.
As per some of the reviews by other people, there are some things that are blatantly old about this hotel. The wooden floors have a bit of separation to them, and there are places where the trim is cracked, broken, or missing. However, these minor little details hardly detracted from the fact that I felt comfortable and safe during my entire stay. I had no problems with the bathroom, as it was EXTREMELY well kept and in good condition.
The one thing that really made this hotel top-notch in my opinion was how the staff bent over backwards to accommodate us when our son became ill. We had already checked out of the hotel (kept our bags at the hotel for the day), and when we were walking towards our destination, our son ended up vomiting quite violently. The hotel staff was more than happy to either see us back to our room or to use the spacious lobby to allow us to clean him (and my wife) up so we could head back out. They were very kind to us and made our stay a true delight.
In my honest opinion, this deserves a rating better than 1.5 stars, but it's totally worth the stay! Great rate and easy access to most of the excellent spots in downtown Vienna! You won't go wrong!