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?
It might be nice to try out different hair textures without having to put any work into it.
Other than that, the only scifi dream I would have is a proper GUI/HUD reporting system so I can just get the raw data about when things are going wrong.
Constantly see your brain waves, blood pressure, blood sugar, heartbeat, respiration, the amount of lactic acid in your body, you're various creatinine levels, just basically everything they would check if you were in the hospital but always visibly available to you so you can see and get direct feedback on what actions you take and how they affect you.