You can't write multiple narrators in first person! It just isn't done. No one would read it. It's too confusing.

That's what people said to me when I began writing. I needed to do so for a specific reason. Gareth Powell, on the other hand, apparently challenged himself to do so just to see if he could. In the acknowledgements page, he said fellow SF writer, Emma Newman, challenged him to try his hand at first person.

It works well. I can't wait to continue getting to know Captain Konstanz, Childe, Sudak, Preston, and especially Trouble Dog.