Roberta's Saturday morning bootcamp is my FAVORITE workout of the week. It's an excellent mix of cardio and strength training that will completely kick your butt and make you feel great for the rest of the day. Every week Roberta comes up with something new, creative, and challenging for the class. She is also great with making the class feel more like a team and working together to push and challenge each other. While some of the other reviews on this site complain that she is sometimes a couple of minutes late to class; I would say that a 50 minute class with Roberta will push you harder than any 60 minute class with another instructor.