Jeffrey's classes are an amazing workout. He is both a passionate and engaging teacher. It is so much fun to dance in his classes. I am a big fan of his Kardio Krunk classes. I took his classes four years ago and never stopped thinking about them when high-risk pregnancies and rough recoveries got in the way of attending. I am so glad to be back. It is easy to modify the movements if you are limited by joint disabilities as I am.