Just to share my experience.
Ya... i agree that hotel is value for money. Anyway, i just want to share some experience i had recently.
i booked the hotel for 2 days. The first day, even though i put the sign "Do not disturb" outside of the door, there are still staff going in to switch off our air conditioner and lights when we are not around. 2nd day, we packed most of our bags in the car and going out for breakfast and i didnt check out yet (the "Do not disturb" sign still there), but when i returned to the hotel at 10am, our room door was open, 2 guys were inside our room (not sure what were they doing, definitely not room cleaning), the manager in charge came quickly towards me and said he was sorry and thought that i had left as his staff already saw me packing earlier on. He was then took my item that i left in the room to me.
Just some sharing.