Hey Markb - Welcome to the community!
Simple IRA's are a little like a 401K plan for small businesses with less-than-100 employees where there's not a 401K plan available.
You can contribute up to $12,500 per year into a S-IRA. For a T-IRA (Traditional IRA) you can only contribute $5,500.
The front-load fee (essentially a 5% commission on all purchases) is not that great, but it's not unheard of. You should investigate whether there are some no-load mutual funds in the Simple IRA portfolio. "SimpleIRA,Inc" (your Simple IRA administrator) takes $50 of every $1000 invested as a flat-fee "commission" for the purchase transaction - similar to the way you pay commissions on normal stock trades.
There's no question - at a minimum, you should contribute enough to get the full match amount - it's
FREE MONEY! On whether you should contribute MORE than the match minimum, that depends on whether you want / need to reduce your taxable income. Let's assume you want to contribute $1K.
Taken as "after tax", you'll have $750 after-tax to put into a T-IRA. And your T-IRA contribution
might *not* be fully deductible (see link) depending on your income.
BUT... 1K contributed to the SimpleIRA, you're paying a 5% 'commission', and have $950 "pre-tax" principle in your S-IRA - $200 more than would be possible to invest in a T-IRA, and it's deductible.
Hope this helps...