Eh. It was predictable and not all that thrilling. Also, Ben wasn't exactly a sympathetic character (I know you're supposed to feel bad for him, but really - he set himself up for everything and got what he deserved).
I found myself reading through it in two sittings only because I am the type of person who can't abandon a book, and I wanted to get it finished & out of the way to start reading another book.
The only other Meltzer book I have read is The Book of Fate, and it was much better. I would stay away from Tenth Justice and read one of his other novels.