I enjoyed using it. If you have the extra cash, it's definitely worth just for the simulation of test day. There were some glitches with parts of it, like being asked to answer a question based on a diagram that wasn't provided, for example. One other example includes that some of the explanation videos/paragraphs aren't matched properly to the correct question. The questions are tougher than the actual PCAT. Your score on Crack the PCAT exams are not truly reflective of what your actual score will be. Get the Pearson exams to take as real indicators of what to expect in terms of performance on test day.