What is the narrator point of view in the book, The Humans: A Novel?

The entire novel is told from the point of view of the narrator, an extraterrestrial, who inhabits the body and life of Andrew Martin. This means that there is an extra layer to the first person narrative because it is not truly in the first person. The narrator is seeing everything, from his point of entry onto the planet Earth, from the perspective of a particular person, but he retains the thoughts and feelings he has carried over from his previous life.