SPRING = WORTHLESS
The floppy spring makes it worthless.  You really do need it to be rigid so you have something to push your heel against as you slide your foot in. Picture yourself using a flexible shoe horn that bends as you stuff your foot in. It does not work. In addition, you need the horn to have curve to it instead of being straight, as does every other one on the market, so that the pressure is transferred to the bottom heel inside the of the shoe. Truly WORTHLESS.  I highly doubt any of the positive comments are authentic, unless it is from a jocky using it as a whip.
Rating: 1 stars