The work atmosphere and the opportunity and potential for growth. I also really liked that interns weren't treated differently from regular employees.
What I wish was different
The work hours.
Advice
One piece of advice would be to give this job time. In the beginning, it was hard and I didn't see myself succeeding in the position. I persevered and ended up enjoying coming in to work every day and grew as a person in my professional and personal life because of this experience.