Everything to include the instruction, staff, and time. Most of all, the intensity and constant pace of the workout, including the smooth transition between each. Being able to see the results helps immensely with gauging success of one'a workout. All around awesome.
I love the class times! I also love how intense each workout is. No workout is th same and even if i don't get splat points or my workout summary is I'm to OTF standards- I still get a great workout in. I leave sweaty, awake, and feeling great!