The product looks cleverly engineered, but for a premium price I have concerns about the longevity of the materials, and the fact that the print does not wrap around the back corner.
Watching that video, I have the same concerns. For the prices Hahn's charging, you could buy a whole lot of stretcher bars, and without the nagging question of "When is the canvas going to break free of the adhesive?"
Certainly it would seem the pro version is "better" in that you're using glue rather than the self-adhesive, uh, "stretcher bars" in the consumer product, but still...