There is no way this machine can provide permanent results. If you actually read those reviews, they’re either fake or from people who’ve only used it for several weeks. You can’t tell anything that early. You can wax and write a review 4 weeks later saying that barely any hair returned. That’s not actually the case of course.
The fact that they claim to remove the hair permanently in only 6-12 weeks and to work on all hair types should be enough of indication to not waste your money on this. Even the most powerful machines can’t do this due to the way hair removal devices actually work (by targetting pigment), and they claim to do this with very little energy.
It’s all marketing and BS. Give it a year and everyone will be asking for their money back.