The staff and the other interns. I also liked learning a new 3D modeling software called SolidEdge. It was fun being able to work on a product and then later know that it was being made for an actual ongoing project.
What I wish was different
Better pay. I change of the routine as well. After you get trained you do the same job over and over again just with different products.
This internship had travel opportunities and I would jump on those if you have never traveled. Travel as in jumping in a airplane and going to a different state within the continental united states.