I enjoy Donald Hamilton's writing and his series of novels about secret agent Matt Helm especially, but this is the possibly the low point of the series. Most of the books are entertaining page turners but I found this one dull and slow.
If you've read this one and hated it try one of the others. They are very good.
If this is you are new to the series try a different one first. You should really read this first one (Death Of A Citizen) first as it is the one that explains why Helm does what he does, and really lets the reader get to know him as a character.