It has a good moment or two, but commits two of the usual terrible sins of sci-fi:

1. Lots of exposition in the form of unrealistic dialog... including the antagonist cackling gratuitously for several pages to the victim over how and why they are going to be destroyed, and how this evil plot will fool them all and they'll never see it coming.

2. Deus ex machina resolutions of plot mysteries and conflicts via suddenly-introduced, implausible quasiscientific machines or mechanisms.

To this you can add:

Officer Cliché: a tough-talking cop who bends the rules and doesn't have respect for the brass.

The book being largely a set-up for its sequels.

Lots of chapters describing a VR video game that's supposed to be hard to tear yourself away from, but in its description seems about as exciting as watching paint dry,

An alien race with superior technology and wisdom who choose to use the most back-assward Rube Goldberg machine of a strategy to attack Earth instead.