I really enjoyed my experience interviewing at GAP. For the corporate jobs, they typically start you with phone screening for 20 minutes where they tell you about the job and ask about your experience. If you move on, you will go to an in house interview where you speak with 3-4 managers/directors in finance for 30 min each. Most of the questions are behavioral and they will ask about how your experience ties into the job. You might get a couple easy accounting questions but thats about all the technical questions you will get.