As an I.T. Consultant, I generally avoid novels based in the world of computers because they're poorly researched & make me cringe. But this is an exception (it's clear the author has actually done a bit of research)
Regardless of whether you're into computers or not, it works well as a dark, psycho style thriller (I agree there are some slight similarities to James Patterson, but I think Mr Lewis has a style of his own)
Additionally, there is an element of romance & some good social/political satire. Plus a couple of good twists towards the end.
All in all, an entertaining read, looking forward to the next one...