I cannot explain the frustration I have experience with almost ten years of prometric after the MCAT and three USMLE Step exams. The physical spaces have of course been awful with rude staff, old equipment, in Philadelphia there is only one bathroom for the entire location!?, and worst of all has been dealing with customer service regarding rescheduling exams. Their entire business model is giving the customer the run around and never help them transferring you from one non English speaker to another refusing to help you then finally hanging up on you. Most recently claiming that I was not allowed to reschedule day 2 of my step three exam. I reached out to USMLE who stated there was no such rule. Prometric will refuse to help you, pushing deadlines closer to your test date in order for them to charge you the maximum fees if you are lucky enough to force them into doing their job. There has to be an alternative to this horrible business.