Okay, this thread is a little old but I'm a new member so can I get away with responding to this?
I actually ordered the TKD3D basically because I had some cash I saved up for some TKD supplies. I'm a very visual learner but have a bad memory. I practice TKD about 6 days a week and am in class 5 days a week. When I'm not in class, I've found TKD3D very handy in helping me remember proper techniques. But! I'm also pretty new with TKD so really don't have much experience in the matter.
I've showed this program to others and they have really liked it. I think they did a good job with this program...well, from a newbie's point of view.