We were pleased with our superior room in the Villa next to the Hotel. It was spacious and warm. Cds were a nice touch and the sound system was good quality and we could connect our iPod to it. Breakfast was good and freshly cooked eggs are available. Parking was excellent and there was no extra charge although we were expecting one from the info on Booking.com. Its a bit of a trot into the old town but only about 20 mins max. If you don't want to return to Old Town in the evening there is a good Italian and Indian just up the road in Rupertgasse. I would recommend this place, especially if you have a car and prefer to stay away from the busy Old Town.
One small complaint which we did report was that our room has a wooden floor which was expanding in the heat of the radiators and making a tap, tap noise. Didn't bother me as I wear ear plugs but woke my hubby a couple of times and may have troubled a light sleeper! Problem was reported when we left so no doubt they will check it out as they seemed keen to please their guests. So don't let this put you off! I guess other rooms in the main hotel would not have this problem.
Travellers should also note that the hotel doesn't have a restaurant in the evenings although does serve snacks.