This penthouse condo unfortunately has a serious problem as it appears that building rooftop motorized equipment immediately above the unit's bathroom is old or malfunctioning and creating loud noise and vibration significant enough to make good sleep in the unit impossible. Becoming first aware of this only upon arrival, I was forced to find last minute accommodations, causing inconvenience and expense. I have sought full refund, so far unsuccessfully (Host even kept cleaning fee), with Airbnb support indicating that "host has declined the refund request because he is saying that it is out of his control. The noise is at the top floor that he does not have any control over." While I empathize with anyone who has a condo assoc. maintenance issue, it is not proper to lease the unit out without full prior disclosure of the noise issue to Airbnb guests. Prospective guests should certainly view the videos of the noise I provided to Airbnb before leasing this unit. This was not good.