I liked getting into my first "office job" and ultimately getting out of my comfort zone. I have confidence in a professional work environment that I once did not possess.
What I wish was different
I'm still currently an intern at this corporation and I personally liked the environment a lot. Only thing I wish could be different is my class schedule because I'm driving back and forth all the time; still worth it at the end of the day.
One piece of advice I'd offer is to try and be confident when you start an internship. At this point I'm very comfortable with my role and my relationships with my coworkers, but starting out I was nervous and would be afraid to ask questions. Don't be afraid of asking questions and growing as an employee!