Has anyone ever used the DanceFrame training tool? If so, did it help with your frame?

It's a tubular shaped frame which when placed around your neck and arms locks you into what should be the ideal frame for dancing. It's supposed to work for men and women, and both latin and standard dancing. There are two World Champions promoting it on various dance websites. Just curious. In the video clips, it looks very useful.

Thanks.

I have used the Dance Frame, and found it helpful. Some instructors have also found it helpful for their students.
As you may have seen Showtime Shoes has a video explaining more about the item and its uses.
The frame does come in three different sizes --small, medium, and large. The size that "fits" you is generally only useful for smooth/standard dance frame promotion. A size larger than your normal fit may permit use for a rhythm/latin dance frame -- the video says that it does; I have not tried.