I am extremely disappointed and frustrated with this purchase. This product failed completely to solve the problem it was advertised for, and the company's "risk-free" guarantee is a misleading trap.Not only did the device fail to stop my snoring, but my wife reported that my snoring was significantly louder while I used it. Worse still, I felt more tired than usual, indicating that the device actively worsened my sleep quality. It is entirely ineffective and not fit for purpose.The "Risk-Free" Trial is not really true:The company heavily promotes a risk-free trial, but they intentionally omit a critical piece of information: the product must be returned to Japan.The cost of international courier shipping to Japan is so high that it exceeds the original purchase price of the item. This means that pursuing the "risk-free" refund is financially impossible for the customer.WARNING TO BUYERS: Do not purchase this product relying on the "risk-free trial." The guarantee is worthless because the prohibitive return shipping cost makes it impossible to get your money back.
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