I am also kind of in shock that I got the fellowship! Previously, nobody in my department has gotten the NSF, and this year 3 people did. My ratings were E/E, E/VG, E/E. Undergrad GPA 3.89, grad GPA 3.96, GRE 1600. I'm a second year grad student and I took 3 years off between undergrad and grad school to work in industry related to my field. I had two publications listed (neither was first or even second author) and I mentioned that there are plans to publish some work that I did at my job. A professor at my school who has served on the committee that rates these applications told me that mentioning publications (or other ways that you are presenting your research in the scientific community) is a good way to integrate broader impacts into the previous research essay. My personal statement talked about how my passion for science developed, and what I have done (volunteering and mentoring) to encourage this passion in kids/high school students. Congrats to everyone that got either the fellowship or an honorable mention!