I have read in some reviews that the development costs have been high. Since I have a tip: you can, if the film is completely full (you can tell when the wheel can no longer rotate), easily open the camera via a side button and the movie entnehmen.Das is easy and the development costs of the films are considerably lower compared to unwrapped cameras.
But why in the end only 4 out of 5 stars? Stands on the camera that you can shoot 27 images that were there but some cameras do not! A few have recorded only 23-25 pictures, but this is not at 12 cameras so tragic.