After I checked in, the landlord put forward some additional requirements, such as cleaning the toilet after using it, cleaning the lavatory sink, making them as if they had not been used, and not getting water on the ground, even if the water on your slippers is not allowed after you take a bath, closing the door with extreme caution, and not making any sounds, and even entering my room to check during my stay. It makes me feel like I have paid for my stay but have to suffer daily accusations and blank stares which was just asking for trouble.(I'm not sure if this stems from racism as I experienced two tenants during my stay and I could hear them going in and out and washing up too, but I'm in the habit of wearing earplugs every night so this didn't affect me much.)
If the landlord is aware of a problem with sound insulation, fixing it, not by demanding that you rent it.