Every person who has done the exam and known to me said that even after you have done so many questions from question banks, Step 1 will still have rather different questions. However NBME is known to have some of its questions repeated. But the main point of Qbanks is to prepare and educate you for your exam.
well not from UW or Kaplan!! they only help you how to manage the real exam which is really important..
but for me I saw 2 exact photos from the Free 144 questions (step 1) from the umsle dot org website!!! don't forget to do it before the exam... they were already easy but u feel better when u see it again hehe