Breakfast can be better organised.
Pros: Room was great: spacious and nice. Location was OK, as we needed to be close to to the center of Vienna, but it was a just a short ride away. Very quite - good sound-proof windows. Very good gym for a hotel, which was important for us. Good quality sauna as well. Cons: Not a perfect breakfast for its price. It was an OK selection, but service was slow as there were not enough people serving it. Food was running out and not replenished for a long-ish time.