Sure, fees are under 5%, but what about that one month that you didn't pay off your bill in full? Enjoy that ~30% interest rate on your account balance.
1) Chase Freedom's APR tends to be around 20%
2) If you only carry a balance (or part of it) for one month (as in your example) and then pay it off the next month, your interest charge is nowhere close to the APR (and it's only calculated against the portion you didn't pay off).