 1 The restaurant could have better breakfast options 2 DONT FORGET TO MENTION THE EARLY LATE CHECK IN CHECK OUT WHEN YOU ARE BOOKING which happens at some nominal charges OR ELSE YOU HAPPEN TO LEAVE THE HOTEL AT A TENSED STATE It happened to me and it was really a bad feeling as the hotels in Europe has a check out time at 3 pm and if you have a flight at 9 or 10 pm then its kinda discomfort But again you can spend those hours exploring the place and that will compensate for the stress 3 The rooms does not have a lock system per se so that you are not disturbed inspite of the warning signs left at the door handle The cleaners have access and they tend to enter the room and that might be discomforting at times However they are doing their job of keeping our rooms clean and they are really nice to the guests always acknowledging and conversing with a friendly smile 
 The location of the hotel is in an awesome place Excellent ever smiling staff who is ready to help you out at any time of the day A classic boutique hotel with awesome interior designs Hotel is in the city centre amidst good restaurants and shops Has a grocery store nearby so dont worry about the personal things that you need and can buy at any time Located near the famous cathedral and opposite to the well known ZANONI CAFE closed during winter where u get mouth watering ice creams pastries and coffees A walk in the alley in front of the hotel just makes your day and night go bright by seeing the beautiful and friendly people restaurants shopping centers etc Will get a taxi right in front of the hotel and have a metro station at a walking distance from the hotel The tour buses start from the Opera House that s nearby You need to be there to enjoy all these that I have just mentioned Will surely return to Vienna again and will stay in the same hotel too 