Body shapers

It is my first time to own body shapers, I am using this currently. I wore it for at least once a week. This is XXL size just nice for me as I am UK 14 size.

There is another body shapers I saw but it is only up to XL size. I know that it is not suitable for me as I think I cannot fit in at all. Now they are many body shaper available in the market which brand will you prefer?

My former classmate told me that she is using a set which cost over $4000. She wore it always and she put on it to stay slim. The set she purchases I am unsure of the brand.