I like the book, but some aspects of it are a little uneven. I haven't read it in a while, but as I recall, Caidin spends a huge amount of time on the accident and the aftermath and the explanation of the bionics. That's fair. Then he fast-forwards through the surgery. Suddenly Steve's limbs are attached and we're treated to a huge back-and-forth about why Steve can't learn to walk correctly. And Steve seems awfully slow about why they couldn't repair his eye.
Plus, Steve apparently can't tell his real right arm from his bionic left, because he keeps having to remind himself which hand to use for tasks. Once he breaks a guy's shoulder by accidentally using the wrong hand. If he was left-handed or ambidextrous, that would make sense, but as I recall, he's supposed to be right-handed.
I did like the psychology, especially Steve's suicidal tendencies and his perception of himself as a freak. And I loved the concept of the "sense without feeling" that the bionic limbs provided him.
I've had a copy of this book sitting around since 1983. I'll have to haul it out and read it again.