Since the object that has maximum sharpness is the object that you are rotating around (which you place into the circle before capturing), this technology perfectly suits capturing different solitary objects (a person, car, object, still-life, etc.).
If possible, it’s best to choose light-colored scenes so that your slids are brighter. Keep in mind that a layer of plastic covering them slightly reduces their illumination.
Printable slids (unlike digital slids) are not suitable for any scenes with motion (the moved object will be very blurry).