Basically what this means is that anyone who is tempted to try a menstrual cup (including the LadyCup) can try it out for 6 months with the guarantee that if it isn't working out for them, they can return it. So for anyone who is wanting to try the LadyCup but doesn't want to buy one of the cheap defective ones then this could be the ideal chance.
A money back guarantee for 6 months. You can't get much better than that!