in what ways is Gregor still human?

This is a central question. Is Gregor is still Gregor if he looks like a bug? THe cleaning lady notices Gregor's human qualities more than his family. Fortunately much of this story takes place inside Gregor's head so that human element stays with the reader throughout the narrative. We see Gregor's fears and sense of futility. For Gregor's family, he increasingly becomes just a bug.