I love the energy level of the classes with the music and rotating in the 3G classes keeps me from getting bored at any one station. This keeps me coming back. Most importantly, I love the instruction given by Jeff and Spencer, particularly in the weight room. They both emphasize correct form, which is so important to avoid injuries. If either of them seeing you doing an exercise incorrectly, they very tactfully show you the right way to do it. Last, I love watching the splat points and zone on the monitor, it definitely makes me work harder.