Do the windows open? I dont like staying in hotels where you are unable to open windows and have to always breathe air conditioner.

Yeah, my windows opened (on the 20th floor or something like that)

The windows did open in the room I stayed in.

If they open tilt-and-turn

Yes, but as it's a tall building, the opening is restricted to a couple of inches for safety

Yes they can

Mine opened as well.