The book basically starts from the beginning by telling that all Christians will be ruptured before the end times. So why would I buy this book if there are no end times to survive? On a positive side at least it tells you to make sure you're living according to God's will and living as if any day will be your last. You would be better served reading your bible.
The authors take verses out of context and generally show their lack of serious biblical knowledge. I personally have read the bible from back to front from the age of four. I know the book well. What it doesn't promise you is to save you from the end times. The New Testament has numerous references to Christians enduring the end times. Explain away Revelations 6:9-11 where it talks about the saints being slaughtered in the end times. How about Revelations 13:7-10 where God tells us this about the anti-christ: "It was granted to him to make war with the saints and to overcome them." It also tells us that if we as Christians try to fight back with the sword we will die by the sword. And if we try to capture the enemy we will be captured. Do not fight the anti-Christ with violence that is the order of God. If you do so you will fall.
There are some that even think they will be raptured and then more people who be converted afterwards and be the ones slaughtered. All I can say is you are fat and lazy and shame on you for thinking you are special and should escape the end times. The only ones who escape the end times are those who have endured hard times in the times you endured nothing but good times. They will be already accustomed to the misery to come and take the burden lightly, but you will have a heavy burden put on you so that you maybe as they are. Jesus will come during sometime in the last times, but when only God the father knows. Not even the Jesus knows. Every day in the end days will seem as year. Yet he will help all that are his to either perceiver to the end or die for his glory. Either way you win, but if you give up on him and take the mark of the beast you will be lost forever. Thank God for the wise for they will have prepared for this and will save many who wouldn't have made it.
What does common sense tell you? Do really think Jesus wants to have his people who started out martyrs and gave everything up to follow him and be hunted by the Roman empire to end his story the way Christians are today in America? - self-indulged, never have gone hungry for Jesus, nor risked their life for Jesus. We think we are courageous when we get flack from people for spreading the word of Jesus. Imagine Paul being stoned and beaten, and yet still keep going on. We are frankly pathetic, but worry not as Jesus will purify us and makes us worthy in the end. All who perceiver will make their lord and savior very happy.