All was ok, except the housekeeping staff. I always recognize housekeeping staff work and I appreciate their good work. But really, this time was a pain. Knocking 5 times to the door between 8 am and 11 am seems too much to me. One male worker even used his key to enter the room without knocking, then apologized. Another worker knocked while I was in the shower and tried to enter (I used the lock that time). If it's a strategy from management to ensure hosts check out before 12 pm, please change it. At least, I learned that I should always post the "Do not disturb" tag on my hotel room door