what is Gregor's adaption to his new body in what ways do the satisfactions of his life as an insect differ from his satisfactions of his life as a traveling salesman?
I always think that it is very ironic the way in which Gregor's life doesn't change that much in terms of the way that he is treated and viewed by those around him. He always was the bug that was an outcast in his world, forced to work in a job that he found deeply unsatisfying to support his family. In some ways, Gregor's life actually improves as a bug, as he does not have to work in such a demeaning profession.
It was strikes me hard that Gregor doesn't ever ask himself "why am I a bug?" He just immediately accepts that he is and figures it out from there. He fairly quickly adapts to his form and learns how to walk using all of his legs. He was wholly dissatisfied with his life as a salesman -- always on the go, no lasting relationships, and even a lessening in the satisfaction he once took in being able to provide for his family. The metamorphosis is an interesting challenge for him, and while he feels bad for his family, he seems accepting of his new fate.