What an awesome book! It was a real pleasure to read. It matched my criteria for a perfect read: Unique plot unlike one I have read before + high quality writing with skillful use of language + not too dense, not too intense, not overwhelming for my high sensitivity + made me laugh + made me think + satisfying conclusion + appropriate length = PERFECT FOR ME! 
 I loved the way the tone and style changed throughout the book as the narrator experienced changes in perspective. I also love that although this was a book about an alien, it was really an exploration of what it means to be human. I thought the objective analysis of human behaviour was hilarious at times, as the author Matt Haig clearly made some great satirical comments on how many humans make choices and priorities. I think the voice of the narrator was extremely well developed-- very believable. 
 I liked the characters. I thought Isobel, the wife, was beautifully written. Her physical actions, her facial expressions, and the hints of her emotional reactions which she was unable to suppress painted a very real picture in my mind. She was perhaps the most relatable character in the novel for me. 
 I strongly recommend this book! It's a rather literary style of science fiction, which suited me well. It's really a beautiful novel which was funny, original, thought-provoking, and fun to read. Fabulous! 
 (This was another great recommendation I got from Book Riot, I think it was on the All the Books podcast)