Being able to work closely with patients, doctors and other staff.
What I wish was different
My specific job tasks were fun for the first year, but as I returned for the second year they had a more redundant feeling. There were things that I felt I was qualified to be able to do (like taking back certain type of visits) that I could not do because it was not allowed within the parameters of the job/internship.
Advice
Go in with an open mind and try to learn as much as possible while working. This includes shadowing doctors and nurses when possible and really sticking your neck out to ask questions and try to understand the things that are going on in the office. Even knowing where things are stored and how things that you never use will work.