Pros
Very affordable high quality health insurance benefits even for PT employees. Great for working parents who split up child care and need coverage. The key to succeeding at Costco is to work hard, have a good attitude and be nice to people. It's hard work and fasted paced, you have to be down for that to succeed.
Cons
At this warehouse you are required to work 5 days per week, even if you are PT at 24 or so hours. This means lots of 4-5 hour shifts rather than fewer 8 hour shifts which is tough for those who commute a long distance to work or have to cover day care.