Great energy in the room- instructors and music.
Awesome workouts- the running is always challenging and the floor workouts are tough and always varied.
Love the overall variety- I've never done the same workout twice!
Very effective, motivating and energizing. The coaches/trainers involvement in making the workouts safe and effective for each member makes all the difference. The HR monitoring and emphasis on being in the most effective HR zone for cardiovascular fitness is very important.