After a probation period of about 6 months you receive benefits and join the CWA union. There benefits and vacation packages are actually very very good. After one year working, one year paid vacation. It is a stressful job, so it makes sense they try to retain employees with amazing benefits.
They're aren't really any benefits. They offer to be part of a union after your 30 days, if you don't want to be apart of it then you resign and they give you your last check.
List based on reports from current and former employees. It may not be complete.