The hotel is old but everything work perfectly. Service was good. Breakfast mediocre (almost no vegetables). I've stayed in other hotels in Vienna. Your reviewers rate the hotel as the seventh in quality in Vienna. I think it is among the 4 best.

We stayed at the Imperial for 4 nights at the beginning of January 2012.
We booked a Maisonette room which is a bi-level suite with wonderful views
of Vienna skyline.
The room was very beautiful, the service of the hotel was perfect as always.
Breakfast is served at the hotel cafe and is as close to royal as one can get.
We were treated with champain, flowers and chocolates in the room,
and every afternoon we received new supply of cookies.
All in all the experience of staying at the Imperial is regal, we felt like royalty.

What can I say, the hotel which used to be a former palace is still fit for a king! You are transferred into an imperial world, the rooms are wonderful, big marble bathrooms with Bulgari shower gels and creams, great location, and wonderful staff! You can really experience that a lot of them have been working for the hotel a long time as they can answer every question you can think of! We were not sure if the waiters in the café can actually smile but breakfast in there was very good indeed! See you next time!

This was our first 'splurge' hotel and it was well worth it.
Dinner in their restaurant was a most delicious 'Wienerschnitzel' followed by their Imperial Tort, which was better than the well known Vienese SacherTort!