After two hours of trial on ILK, our user told us this

Jiang is a traditional Chinese swordsmith, he was amputated sixteen years ago due to a car accident, he was using passive knee prosthesis after the tragedy. We invited Jiang to our Chinese office to try our ILK powered prosthesis knee, After two hours of trial, he is already able to walk, climb stairs easily and freely. He is really excited to share his feelings with us through Google translate. (I hope your product will come on sales soon, so we can all benefit from it)