Entirely thorough, yet it encourages deep self-guided study. Which is, after all, the entire point of teaching the Word of God. Acts 17:11 is the key verse- Accept the teaching, BUT search the Scriptures to prove it! That isn't saying that you should doubt what Mr. Missler teaches, because it is accurate, but you need to settle the matter for yourself!
Take your time, pull out your King James Bible, a good concordance, and spend the time to really digest it all. Make sure you get the accompanying study notes. You will need them, because learning the dates, world events and such takes time, and effort. There is no point in investing in quality exposition of the Scriptures, if you are not willing to work out the details. And this is quality exposition, at an affordable price.