I stayed at a Hilton in Brussels two years ago. I think there are two . This one was near a train station and the AC wasn't working well. Additionally, they were doing construction near by. We actually changed rooms twice the first night. It ended up being funny- I speak French , the boyfriend with me, did not. I was pretty torqued by 2 am and the second room with no AC and the front desk clerk tried to tell me that the temperature on the thermometer was not the temperature in the room- hmm where would it be the temp- Peru?.
Anyhoo, as we were schlepping to room number 3, the front desk clerk turned to my BF and said " your wife is not a pea ( happy)" . He replied" no, right now she's a B".
So, overall it was not a great stay. It was LOUD from the trains and the construction( I think it should be done by now) and breakfast was like $22 a person- way more than other places I stay- even in Sweden. I think that we had trouble getting the room cleaned also and the manager wasn't too receptive to our issues. So , my vote is not for the Hilton

Have a great trip.