[quote=lightdarknight]At what rate can it form new nanites from raw material, how long does it take to form a new shape (i.e., sword, gun, new arm)[/quote]Depends on the material, organics is extremely slow, metals are faster, incredibly weak materials (i.e. t-shirts) are convertable but the effort and time it takes to make them durable isn't worth it.

[quote=lightdarknight]and how durable/damage resistant is the new construct?[/quote]Once the material is converted there is no distinguishing one nanite from another.

[quote=lightdarknight]My hesitation is that she is basically immortal[/quote]No more immortal than any typical comic book character that Mavel or DC killed and brought back to life.

[quote=lightdarknight]indestructible[/quote]If Cyber was indestructable there would be no need to leave a piece behind in case of destruction. That would be illogical. An EMP could permanently disable her, that is not indestructible.

[quote=lightdarknight]and capable of nearly any form of combat and skill(genius level intellect and all).[/quote]Only if Cyber bothers to learn it, if Cyber doesn't see the need to learn something Cyber will not ever possess that knowledge. I actually made her stupider than I originally created her.

[quote=lightdarknight]Also, if it is emotionless, why does it feel annoyed my the sound of sirens?[/quote]Some things require your undivided attention, sirens would divide that attention thus ruining whatever it was. It's like how golfers don't like people making noise when they are making a shot or a put. Also grating doesn't have to involve emotions.

[quote=lightdarknight]A character like that would have a hard time feeling empathy towards the other members of its team[/quote]Cyber would never be able to feel empathy for anyone ever.

[quote=lightdarknight]and would be unable to form relationships.[/quote]Data from Star Trek The Next Generation tv series and movies would disagree with that statement.

[quote=lightdarknight]Seen the movie Transcendent?[/quote]Never seen Transcendence (that is the actual name) didn't look appealing, seemed like a ripoff of [url=https://en.wikipedia.org/wiki/The_Lawnmower_Man_%28film%29]The Lawnmower Man movie[/url] and it's [url=https://en.wikipedia.org/wiki/Lawnmower_Man_2:_Beyond_Cyberspace]sequel.[/url]

[quote=lightdarknight]Reminds me of Will Caster. He can't be destroyed and is able to overcome any opposition without any problems whatsoever using nanites much like Cybers.[/quote]I just read about the movie. Your assessment of the movie is completely off. Will Caster didn't survive the movie, so I don't see how Will fell under the category of 'can't be destroyed' or 'able to overcome any opposition without any problems whatsoever'.

[quote=lightdarknight]She seems more like an all powerful being than a teen crime fighter.[/quote]Any entity that is a teenager that fights crime is a teen crime fighter regardless of abilities, powers, or success.