People, scope of work, pay, organisation's culture
Lack of specific feedback on the progress of work
Advice to Potential Interns
This is a great place to work with friendly people and good pay. However, if you have other offers with firms that have historically converted more internship offers to full time offers; and if you are an individual who doesn't want to recruit for full time employment again, you might want to weigh your options more carefully.
Advice to Management
Employee retention, specific feedback