Court Gentry/Mark Greaney?

Anyone ever read any of Greaney's Court Gentry books? I've been looking for something new in the thriller/spy genre, and his stuff seems to get decent reviews.



https://www.goodreads.com/book/show/6547865-the-gray-man" onclick="window.open(this.href);return false;



Just looking to see if anyone on the board can give insight as to how his stuff compares to Thor, Clancy, Child, Cameron, etc.