Not too bad. I liked Jack's character although I wasn't so keen on Adder. Jack's trials and survival in prison was interesting and intense without being gratuitous. The ending was anti-climactic. I was hoping the two MC's would do some great sting operation on the two people who double-crossed Jack and sent him to prison.
This self-pubbed author can spin a good tale and it was promising to see that he's tightening up his writing so this wasn't quite as rambly as some of his past books (but still enjoyably long).