Ok last time I'll state anything like this but my main problems were: 1. Werewolves suck easily one of the worst fantasy creatures. 2. The nano machines are so boring, yes Peter can take any form but it's not really cool unless he pulls a plasticman and becomes inanimate objects. You've seen one grey goo/nano machine character you've seen them all. The fun of having a machine body is becoming larger and larger to fit in all of the tech and with nano machines it eventually becomes a case of, "I can turn my arm into a laser cannon and a chainsword or whatever."
I just feel like nano machines are a lazy way to leave your mortal form behind.
Considering one of my biggest desires for a new body would be to become
smaller, that would entirely defeat the purpose for me.
I hate being big. It was fun for all of six months when I was fourteen, then I realised I couldn't
hide anymore. I was too tall. Too heavy. Too
loud.
Poli is, I believe, someone who wants... amorphosity. Mutability. Being stuck in a big machine frame because he
needs to be in that big machine frame wouldn't be that much better; it's a massive limitation, not to mention an inconvenience.
Even if resleeving was a simple enough procedure it'd still be a chore to do every time you want to go somewhere with
human-sized doors.
(This is something of an assumption on my part, but it's what I've read from the writing.)
You just want different things out of your trans-humanism.
And I'm off to the side in my 'no machine trans-humanism' branch where I'm
extra out there. Even basic cybernetics wig me out a little.
Nanomachines less so, it's the idea that my 'machine' body wouldn't be
self maintaining and need specialised skills to fix and keep running that does it. Nanomachines are self-maintaining and... pretty much dodge all of my issues with tech-based trans-humanism.
Nanomachines are only 'lazy' in that they are one of the most broken things in Sci-Fi. It's
convenient in a way your preferred method isn't.
Whether or not that impacts the story negatively... we'll see. He's a Tinker of Fiction with a functioning (Mecha) Zerg Hive, it's not like he isn't
already hilariously powerful.