Maybe brutal is the wrong word, but it is really, really hard. As much as she complains, she also loves to demonstrate at home how hard the exercises are and I think she is proud of what she is accomplishing. We talk lots about developing grit and determination, it is good for her to learn how to push past uncomfortable and dig deep to discover mental and physical strength she didn't know was in her. She goes grumbling in the morning, but she comes out happy and in a great mood, albeit sore, in the afternoon. I wonder if she would enjoy a crossfit class for teens, I'll have to check into that for when the summer is over.