C.O.
An FSA - Flexible Spending Account - is a tax deduction. An FSA allows you (an employee) to set aside a portion of earnings to pay for qualified expenses (day care, medical co-pays, medication, braces, etc.). The money deducted from your paycheck and put into an FSA. Since the FSA is NOT subject to payroll taxes, you can have a substantial payroll tax savings.
Do you have elderly parents? If so - their care may be covered under the FSA plan.
Go over your medical expenses for the last year - get the total you spent on health care - co-pays, treatments, braces, etc. - once you have the total - divide it by 12 - that is the amount your employer will take from your paycheck - and put it in an account for your use on medical expenses.
If your employer is providing health insurance - is it better and cheaper than what you have now? If so - consider balancing out your plan and switch over during "open season".
Pros - you have money set aside that is a tax deduction - to pay for medical expenses.
Cons - if you don't use it - you lose it.