Filling in forms - boxes and circles

I ordered breakfast in bed in a hotel recently. I took the door-hanging "form" and preceded to complete it. The instructions at the top said to indicate quantity in the boxes and indicate a preference in the circles. Sounded nice and easy and simple. But it was inconsistent. For example the choice of time was to be marked in a box...I also thought that it wasn't helpful to shadow the box. It would be easier to note a quantity in a box that wasn't shadowed.
Even on holiday I'm in analysis-mode and trying to improve things. Sigh.