I took the review, and LOVED it!!! There was no real reason other than that was what she thought was best for us. Sitting there, not having a true "end" in sight, is mentally and physically hard on us. She said to take a break just to "rest" and "recharge" basically. I didn't follow the advise though....I didn't think I had been sitting long enough (for me) to need a break. I think she wanted us to know, the breaks are there, so take them. My mind did wonder a time or two, but I focused myself, and I was okay. I would not sit for the whole first two hours though, I would at least take a bathroom break if you find yourself in that position. You will be fine on time, do what is best for you and for your mind. This will be a VERY important day for you, and you need to stay sharp as a tack!! Good luck on your exam! If you have any questions about the review or the book, please feel free to contact me, I just went through it a few weeks ago. Also, the q review is great!!