In the past few years, I have bought three cheap ones. This time I bought a better one and after used vt027, The difference compared with the previous ones is that the cheap vibration machine feels like the swaying of driving a cheap car on the highway .The Vt027 feels like the swaying and vibration of driving a high-end car, so I think vt027 is worth to buy, I am a person who doesn't like going out. So I have to use vt027 to maintain my body.