Rabbi Blech's work is framed as a response and antidote to the Blind-Watchmaker approach taken by Rabbi Kushner in "When Bad Things Happen to Good People." In my opinion, R' Blech's work is the far stronger of the two.
The most powerful strength I saw was that R' Blech would bring up an argument, say that that was not a sufficiently compelling argument, providing some of the counter-arguments, and then move on to the next approach. In this, his work is extremely Talmudic - much as the Talmud preserves the minority opinions, so too does this book.
There are some extremely interesting points made here - as an example, on the topic of free will, R' Blech differentiates between a bad thing which is human caused (say, a murder) and a bad thing which did not have a direct human cause (say, cancer) - the former he attributes to humans, where God has withdrawn himself enough that the humans have free will, while the latter is in fact attributed to God. In that respect, the bigger theodicy challenge comes from those non-human-caused things, and R' Blech does not shy away from the pain of confronting these. The last full chapter is on the subject of the Holocaust, and there too he examines several perspectives, most of which are unsatisfying, and his last approach is the one I found the most satisfying - even if he got there via mystical means.
This is highly recommended for anyone who has suffered a loss.