I'm always nervous about trying other instructors when Cathe has been "the one" for me for sooo many years! It's hard to go outside the box sometimes. With that said....Paul Katami can make you work, breathe, hurt & cringe too! Great workouts! I also have 4x4, 4x4x2, Double Down and Hi5. Great stuff!
Nothing wrong with going outside your box sometimes Change is good! They all bring something new/different and you shake things up, JMO!