Just Perfect. Perfect room, great service, very good locations near Messe, centre of town and train station. Private underground parking. Free WIFI. Everything you could wish for.
Room service was very nice and breakfast excellent. And the rooms are very quiet. The only disadvantages are the very fluctuating prices. Room rates can range from the very reasonable to the extortionate during special events and fairs. This is common practise though in many German hotels. Parking also a bit expensive.
Not the place to go for a romantic stay though.