This hotel is very close to the Messe and from the outside doesn't look as a hotel. Check-in went smoothly, friendly staff spoke perfect English. Spacious room, could have stay here for more days if possible.
Although the quality of the breakfast is great, it's with 17 euro's a bit overpriced. Can't imagine that a family of four will pay a fortune with many cheaper alternatives very close in the center of the city.
Anyway, great hotel and really worth for a stay.