I actually enjoy working with applicants on this essay even more than the regular undergraduate Common Application essay. Generally, a freshman or sophomore in college has a better idea who they are and what they want than a high school senior does. And if worded carefully, you have the opportunity to make a better impression with the admission counselor. Furthermore, this essay carries more weight. So take your time with it. And as always, place yourself in the shoes of the admissions counselor and ask yourself, "why should we admit this person?" And if you answer that question correctly, there is no way they won't accept you.