 Zero
 There was really nothing to dislike with the hotel We arrived on 27th Dec and our first impressions of the hotel were from the exterior it looked a bit characterless but then I realised that it is a business hotel more than a tourist hotel Once inside however everything changed it was warm smart even a little elegant The reception staff were very helpful and courteous The room was wonderful large comfortable quiet with plenty of comfortable chairs to sit on The bathroom was amazing with a fantastic walk in shower It was very clean and had everthing that you would expect from a 1st class hotel The situation of the hotel was also great a short walk from the tram stop with a 10 minute journey to Vienna center All in all I would reccomend this hotel without hestitation 