For shadowing, I used bullets, but everything else was paragraphic.
For activities the details of which no one would know just by the title, I included background information on what I did in said position and any other important info.
For typical experiences everyone's seen before, I used the space to write about a memorable moment and how it influenced me.
For each experience I thought relevant to medicine in some straightforward way, I also included how the experience will help me succeed as a medical student.
I think my app will go over well with those who like nicely written paragraphs that are informative and insightful. For adcoms that like bullet points, my app will not be popular.