Pros: Learning experience
If you're a high school student planning to do co-op, I suggest you find somewhere else to do it. From my Experience, doing my co-op at Suzy shier was BORING and hardly an experience I would want to do again. I did nothing but walk around the front of the store all day, greeting and cleaning up. They made me do basically all the jobs, they didn't want to do "Greeting, cleaning the store before opening, advertising for sales". I was only able to do stock maybe twice, never able to do change rooms.
Work was only enjoyable if there was a lot of people in the store! When there was downtime, the others would be talking in the back, on their phones, while I had to continue walk around and clean.