On the flight there, my seat had no seat but we were allocated to other seats. However, the relocated seats were just in front of the seats for the crew. I did not feel comfortable. There were periods when curtains were drawn around the crew seats and the curtain intruded onto the headrest of our seats. Also, someone must have farted when using the designated crew seats area. On the return flight, the lady behind our seat occupied the entire cabin storage area above our seats. When I asked her, she said that she was there first and she had the right to the storage area. She added that "that was the way it is". I would like to suggest that Qantas regulate the use of cabin storage area so that the occupants have access and can use the cabin storage area directly above their seats.