Avantages
Diversity in geography, products and markets helps the company weather financial storms better than many corporations. Employment is relatively stable and it's better than being unemployed.
Inconvénients
If you're male and white, you're in heaven here. If you're not both, it's an exercise in futility. Save your time and your sanity. If you're black, you will never go anywhere here. There are virtually no black executives, almost no black middle managers, virtually no black representation even in human resources and/or "diversity management". There are no diversity initiatives. Equal pay for equal work does not exist, color-wise or gender-wise. Pay for performance does not exist. It's good old boys tapping good old boys on each others' shoulders. If you're particularly talented, you can be sure that you will be kept buried and muzzled deep within the bowels of the organization. Frustration and/or exit are the only logical results.