I've been attending classes at the Tempe center for about one year. It is true that the classes are not yoga in the traditional sense, and are more akin to Tai Chi and energy practice. It did take a bit of adjustment and learning (Tai Chi can be challenging in it's own way!), but that being said, the benefits I've received from a year's worth of practice have been real, measurable and very much welcome. I've seen not only physical change but mental and emotional improvement as well. It's been a year well spent :)
It's apparent that Jeon and the other teachers very much believe in their craft, and show up every day to help people. They are kind and generous and show a real interest in seeing improvement in their members' well beings. I certainly appreciate the help they've given me, and I see myself attending Dahn for a long while to come.