Preferred Employer Organizations

[Tiffanie Aiken]

Any one heard of or use one? Can you point me in the direction of more information? This was suggested at a REI workshop I attended recently and I am thinking I want to use this for my rehabbing business. From what I understand a PEO is a company that hires, takes care of payroll for businesses and also gives worker's comp and benefits. So you can hire yourself to work for your company, giving you W-2 income and avoiding self-employment tax.
Can anyone suggest disadvantages to using such an organization?
Thanks!