I was living at over 30 floors.
1. I keep heard the noise which should cause by train which make the room resonated to shake. The noise happened once every 5min, very regular.
2. As for the rooms, it is very old and feel uncomfortable e.g. the boring air and nearly not functioning air-con. The room was creepy. I kept waking on the whole night.
3. I don't think the carpet is cleaned although I only walked on that but wont sleep on that.
In short, I won't choose this hotel anymore. All good but the room setting, internla and externla environments are bad.