 There was nothing we disliked There is no 24 hrs reception you use a code to enter when there s no one around This did not bother us at all but might be an issue to some other people 
 Great location a short walk to Karlsplatz from where you have good connections everywhere Appr 15 min walk to the Opera and K rtnerstrasse Spacious and unique room we loved ours Nice breakfast room and good breakfast The menu is limited though more suitable to adults than children A lot of cafes and restaurants around 