The awesome music is where the fun is for me, it really makes me happy. I enjoy power hour because I can use a light weight and still feel quite challenged. I can squat with a 50 lb barbell in slow and heavy, but put a 10lb barbell on my shoulders for power hour and I'm whining like a baby. Also, each segment is pretty short, and the whole thing is just an hour. You can do anything for an hour. If it's not fun, lighten those weights. An empty barbell is enough, you'll feel it.
Also, I'm here to shout that power hour DOES make nice cuts in your muscles! The heavier workouts made my muscles big, but with only vague cuts. I definitely would make this part of your collection.