Roth IRAs are a great investment, and can be made thru MANY financial institutions and brokerage firms. I would suggest doing some research on different places for rates. For example, our IRAs are thru an insurance and investment company that gets GREAT returns. But these are contributions you have to make yourself, not deducted from your paycheck.
My husband contributes to a Roth in addition to his employer's 403b, and I contribute to a traditional IRA to take the tax deduction.
The great thing about the traditional is that we take the deduction now, and will be able to take out up to $10,000 EACH from our accounts for a first time home purchase. When we do, we have to pay the income tax on it, but not any additional penalties. And because I am often self-employed, it helps reduce my Social Security tax.
Good luck!