It has absolutely NOTHING to do with their service or lack thereof - I fully admit that I have never used their services. My chief complaint is with the way their service reps DRIVE.
As Assistant Safety Director of a Knoxville based trucking company I am habitually aware of the driving habits of others and how they affect my own personal safety as well as the rest of the motoring public. Having said that, I've got to say that it's a darn good thing for the driver of vehicle number 1049B (tag number 27533) that I'm not law enforcement; having personally witnessed - on numerous occasions during my commute to work - the aggressive, disrespectful and down right dangerous driving habits of this individual (as well as several others - contrary to your obvious belief, Ed Shouse road is NOT the straightaway at Darlington) I've reached the conclusion that if they perform their job duties the way they drive, then the service would be unsafe at best and outright hazardous at worst.
The tailgating, speeding, passing in no-passing zones and cutting off of other traffic... Well, suffice it to say that if I were overrun by pests and Cook's offered their services for free I would not, in good conscience, be able to invite their drivers into my neighborhood.
Review about: Cooks Pest Control Pest Control.