I started out at level 3 and did 2 workouts. THEY WERE AWFUL. I could not get through the second and was so worn out I had ZERO motivation to continue the program. I dreaded working out again since Friday. Today, I came to my senses and tried level 2. Level 2 left me pumped and ready for more. I do not dread working out tomorrow (which is supposed to be an off day but I need to make up for taking extra off-days).