Do not book rooms that have windown into the atrium, they are without natrual ligth, just a window you have to keep curtains closed.
First ting we where meet whit was up sale, that we should take another more expencive room due to that they are better, just 50 euros extra, no thats a red flag. Then the Gym, its a joke, tiny and have no equipment, just stupid. Then they revomend their own restaurant if you ask, and that was a disapointment to! Choose anothet hotel!