Footprints on a floor, but it is half of the problem. Tilted floor in room, so your head below your feets when you sleep in bed. And smell - very stinky room - strong mix of mold, damp and toilet odor. I have to wear mask, and even then barely fall asleep and my sleepwear has to be washed next day to get rid of that smell. No way to ventilate rooms - windows are into hallway that itself has strong odor of plastic. Breakfest has to be ordered. I ordered yougurt, croisant, fruits and juice - croissant was not fully cooked, and fruits from can - sounds very cheap. Botton line - no way it is 4star hotel. Avoid it at all cost.