How far to go with 401k contributions (company match and otherwise).

I currently contribute 10% of my salary to my 401k. The company will match 25 cents for every dollar I contribute up to 6%. This works out to roughly $550 a year. .65% Expense Ratio. Provider's website says I'm up 5.65% since I enrolled. Should I continue the 10%? Should I drop down to the match and look for other investment options with what I get back?

Extra information in case it's helpful: -32, married, combined income without bonuses $85,000. -House is paid for, no mortgage. -1 car loan of $201/month. 4.54% Interest rate. Can be paid off in savings if necessary.

Thanks for any responses.