Will it sound like me, or like a robot?
It learns your tone from what you write and what you correct. You tell it “that is not how I would put it” and it changes, without you opening a single setting.
Will my community know it is an AI?
Yes, and that is not negotiable: European rules require saying so the moment someone writes in. In practice it bothers nobody, as long as the answer is useful.
What does it do with partnership requests?
You tell it what deserves your attention. It handles the questions that keep coming back and passes up what you asked to see yourself, instead of burying it.