There are many great things about the internship program at AV. The first is that there is no busy work given to interns (I've been told this multiple times since day one). All of the work given is meaningful, and the managers make an effort to find work that is intriguing to the intern. There is plenty of help to be found from peers, and everyone I've talked to has been more than happy to share their knowledge. Everyone I've met, managers included, has been very approachable and friendly. The atmosphere is laid back (there's a ping pong table in the lunch room), so the stress levels never get too high. The final pro I will mention is that the company is small enough for everyone to see the impact their efforts are making. It's very inspiring to see something you've worked on and contributed towards in the field, performing at it's best. It's a very simple way to stay motivated about the work being done.
I think most internships are what you make of them. There aren't a lot of activities outside of the office planned for interns, but even so there's always the opportunity to plan things yourself. It's also going to vary widely based on supervisor and task manager: the people under which I am working are very relaxed and don't check in on me much. While this works very well for me, it might not suit others as well.
Advice to Potential Interns
I really only have good things to say about AV from the perspective of an intern. The work has been fascinating, and it's possible to find work here that doesn't require aerospace or aeronautical knowledge. I feel that this has been a valuable experience and has shown me what it is like to apply my skills in 'the real world' (versus a purely academic setting). I'd say the expectations around here are fairly high, so definitely be prepared to work hard.
Advice to Management
Nothing immediately comes to mind. Different things work for different people when starting out in a new environment, so the fact that the internship program isn't tightly structured works in AV's favor.