Locked in solid schedule and an easy and low stress job overall. Most accounts are staffed for government agencies so there are no accounts where you will be in a high stress position dealing with belligerent people, drunks, or the bar scene.
Plenty of work, pays more than most all other local companies, and usually opportunities for more hours.
They provided all uniforms, gear, equipment, firearms, training and licenses at zero cost to the employees. Just have to take care of it all and return it when you're done working for them.
Set hours, full-time work, low-stress duties.