I applied through university. I interviewed at Gulfstream (Atlanta, GA) in Sept 2016
Interview
Talked with recruiters at my campus career fair, was called later that day to interview the next. Interview consisted of a panel of 3 former co-ops, who asked basic questions regarding experience and typical personal questions. Relaxed atmosphere, and interviewers were friendly and professional.
Asked basic interview questions. Nothing technical. People were easy to talk to and super friendly. They gauge their interns based on their personality rather than former experience. Highly recommend, enjoyed the process.
The process took 3 weeks. I interviewed at Gulfstream (Savannah, GA)
Interview
IEF Co-op; recruited from the university career fair. Fit check for the team, personality-based questions, and questions related to past projects and work. The interview lasted half an hour and was often with the past graduates of the university who went through the program and were hired for full time.
University recruiting, interviewed the day after career fair. Was asked to explain resume and answer some behavioral questions. There were some follow up questions about things on my resume but no real technical, exam-like questions.