I'm impressed at the promotional opportunities given to employees even those who don't have a college graduate. Costco is a good employer and I have been working here for 8 years and I get full benefits which competitors do not give.
You need to work hard to succeed and be an overall nice person with a positive attitude. With such a fast paced environment, you have to work hard or you will fall behind. Health insurance is very affordable for full-time and part-time employees.