You don't specify if 'rough around the edges' is manifested in her manner with the children, age-appropriateness of her manner/conversation, or safety issues or other concerns regarding discipline, etc.
I know some teachers can be great with the kids but aren't always wonderful with the parents. Even some excellent teachers. Some may be truly fantastic with kids but come across as very blunt and all business with adults.
If that is your concern-- just a personality mismatch between yourself and the teacher, I'd let your daughter go to the camp. If there is a quality of care issue, then use your best judgment. Otherwise, it's great for kids to have some consistency in caregivers and it will ease the transition to a different 'style' of curriculum, etc. Sometimes familiarity is a great things for kids. So, unless there's a concrete reason you have concerns about the summer, your child's safety, how the staffing is (I wouldn't want someone who gossiped in front of the kids, talked on their phone/was texting, discussed their adult life or exposed them to blaring top 40 radio all day, for example)-- unless the concerns are more than what you have minimally described, I wouldn't worry.