The equipment classes were created to add resistance to the class by using springs. This helps to target specific weaknesses and we use specific props to balance out your body and any misalignment. On the mat, you use your body weight as your resistance. You may find that the equipment offers you more support, especially as a beginner. In short, use both. For optimal results, I recommend using the mat, tower and reformer to feel and see the the difference in your body.