Our stay at Thon Brussels Hotel from August 17th to 19th was a huge letdown. As a pregnant guest, I was hoping for comfort but instead faced multiple issues. First, we were given a room that was already occupied. Then, we were plagued by loud noises from the radiator in second room assigned to us, which kept us up all night. We moved to a third room, which was even worse. All in a space of 2 nights, 2 nights of no sleep and with being heavily pregnant. It was so bad. The staff's response was inadequate, waking us early on the morning of our checkout. This was easily one of the worst hotel experiences I've ever had, far below what you would expect from a 4-star hotel.