If you could design your own body and hit a button and have it immediately implemented, would you keep your natural self or would you make changes?
We'll just all assume that every person who gets this would make themselves early twenties with flawless skin, perfect organs, appendages and functionality, and no excess weight.
My question is, would you change yourself from your genetic baseline, and if so, how?
I'd resolve my numerous health issues and take on a youthful appearance.
I'd imagine if this was ubiquitously available to everyone we would see a majority switch to their likeness to their favourite characters from whatever media they prefer.