i like it. questions are tough and long...i haven't done step 2 yet, but i am using this book during a lot of my IM blocks, and it is helpful. i have noticed a significant improvement in my scores on q-bank and nms that seem to correlate well to my use of mksap. if you have time, i say use it. drawback is that it is only IM, and it is a big book with a lot of info. but, IM is the major part of step 2, right?