Her abs come with good form right?
But for real, if you have a chance to work with someone on nailing proper form, it is worth every penny. Being injured is NOT fun, as I have been in the past. I have a bad knee, so I tend to want to turn it out when squatting. It almost hurts to keep it straight, but I know once I get used to it, it will be 100% better on my knees. Plus, how am I gonna get Beyonce's behind without some squats and deadlifts?