Pros
I had a 10-week summer internship at the Navy Exchange as a marketing intern. This internship was very informative and organized! Everyone was set up with their own mentor from a department they were placed in by interest or based on their skills/degree. I was placed in the apparel (softlines) division. Your mentor gives you a capstone to work on while doing daily tasks and weekly projects. I enjoyed attending buyer meetings, going comp shopping, etc. HR is also a great resource, and they make sure to schedule meetings throughout the week to help you develop your resume, LinkedIn, and overall professional skills. Good pay, everyone's friendly.
Cons
I was lucky to have been placed on the apparel team (which is what aligned with my major), but you don't always get a choice. They are flexible, though, and I'm sure if you spoke with a manager/ mentor, they could work something out that you could benefit from and enjoy.