we could not sleep,
1.the air-conditioning makes a lot noises. and the worse is the ventilation system, it makes irregular noise in every a couple minutes. we asked to change the room at middle night. You know what, the same problem with the second room, we just gave up
2. when someone closed his door, the window is shaking in the room. we left the hotel at 7, as we could sleep at all ,and we met some other guests at the check-out. actually they complain about the same issue. It means not only we feel the noise is too terrible.