Anybody who is seriously thinking about using examkrackers should stop thinking and just get their materials!!! I highly reccommend them. I know many people who have used them and their scores increased anywhere between 4 and 9 points. I know that I will be using them this coming April MCAT. Just make sure that you do exactly what they say and put your all into it. You will see a huge difference. Check out their website...they have an awesome bullentin board where you can post any MCAT question.