My friend and I stayed here over a long weekend while we explored what the city of Vienna had to offer. While we had a great time sightseeing, we experienced several issues while staying at the Hilton, albeit, not all of them could have been rectified by the hotel.
During our first night, we were rudely awoken by loud roadworks right outside the bedroom window which consisted of drilling, shouting, and other work-related sounds. We brought this to their attention the following day where we were greeted with essentially a shrug of the shoulders stating they were not working that night.
Moreover, we were informed that our room would be cleaned every second day, yet to our surprise, this did not happen. When reported to the desk, they informed us that they would get it cleaned straight away but when we returned to the room later that night, the room was in the same state but with clean towels left by the door. When staying at a hotel such as a Hilton, I would expect this as a minimum.
Overall, the hotel was clean, well kept, and in a great location, however it was these experience that have led us to leave this review.