I'd much prefer nanites that silently aid you and can be controlled and repurposed and replicated easily and turned on and off like in DX1 and 2 (especially) than hunks of gross metal like in Bionic Command or DX3.
Want a stronger arm: get nanites programmed right that will aid the body in the natural strengthening process: helping repair the fibers, removing carbon dioxide and lactic acid, carrying in more oxygen and nutrients, etc.
In Deus Ex it actually went through mechs (who ended up being despised and ostracized) first to nanites then with nanites being more powerful (thus making mechs also obsolete) and seamless (you couldn't tell who had nanites in him just by looking).
Want a stronger arm: get nanites programmed right that will aid the body in the natural strengthening process: helping repair the fibers, removing carbon dioxide and lactic acid, carrying in more oxygen and nutrients, etc.
In Deus Ex it actually went through mechs (who ended up being despised and ostracized) first to nanites then with nanites being more powerful (thus making mechs also obsolete) and seamless (you couldn't tell who had nanites in him just by looking).