Gained a lot of real world experience
Made lifelong friends with several of my co-interns
Learned that I like both tax and audit
Learned what it was like to work in a corporate environment
The forced fun events - including busy season games
Internal office politics
Direct supervisors - often demanded unreasonable results
Advice to Potential Interns
The office has a clique type of environment. If you mess up near the beginning, seniors spread the word that you aren't good and it becomes a self-fulfilling prophecy as they approach you with a negative attitude (unhelpful, unaccomodating, etc). The social events can be fun and let you get to know your co-workers outside of work.
Advice to Management
I think that training was a wasted week - we didn't have internet to be able to get into Caseware or Prosystem. Even though every audit/tax return is totally different, I believe that you could easily put together examples that hit the most common areas (ex. bank statement to cash reconciliation or the completion of a basic individual tax return). Many seniors were frustrated because they had to show us everything - how to open the software, where to go within it, what not to do, etc. The office is not very diverse and I think promotion policies should be seriously evaluated as some are woefully unprepared for their assignments.