The company culture, the ability to make a difference in peoples life, and interesting work.
There wasn't anything bad to say about the internship experience.
Advice to Potential Interns
Visa is a large recognizable company that has a great team atmosphere and work culture. Everyone is always trying to learn and willing to teach people about what they are doing. Through Visa you can have a direct impact on peoples lives and it is a company at the forefront of technology.
Advice to Management
I think that the cubicles make it slightly awkward to talk to the people around you if you are not placed near the team or department you are working in.