it's worth trying for me because i have serious flat feet and i have to bear with the pain for walking long distance (ever since i start my uni in australia)... and the people who work there told me that if you are not satisfied after 6 month of wearing it (no improvement) you can have a full refund. i paid something slightly above 3000 to have 2 pairs of shoes and the insole made. after all if it's really work it's worth the money i paid.
btw, im in sabah.