Extremely disappointing accommodation experience! We are very disappointed! We had instructed the hotel a week before check-in to thoroughly clean our room and vacuum as I am allergic to dust. The hotel replied that they would instruct the cleaning staff to prepare our room properly before our arrival. However, upon checking in, various areas of our room were dusty, clearly indicating that it had not been occupied for a long time. Furthermore, we discovered a strong moldy smell in the bathroom, and the ventilation systems in both the bathroom and toilet were not functioning. We have emailed about the issues but no one responded. Reported the issue to reception on the second night, no action taken. Made a complaint to the management in person on the third night, they have offered room change. The subsequent room we stayed in was close to a main road, and we heard sirens from fire trucks and police cars every night, severely affecting my sleep! I had requested a quiet room when booking and paid extra for a room on a higher floor. Yet, this turned out to be the worst resting experience among the three hotels we stayed at in Japan! The hotel staff did not respond to emails,and there were always many guests waiting for service at the front desk.This was truly very disappointing! I feel that the money I paid does not match the level of service provided! And as tourists, we have wasted large amount of time in communication, packing and unpacking to change room because of their fault