[legion]

Don't do it!

First of all, you can do it on your own without paying any fees. Even if your bank disallows partial pre-payment (and some do), you can put the money in a savings account for 15 days every month. Those fees are simply eating money that could go to equity.

Second, and more importantly, your grace period goes from a 15-day grace period once a month to a 5-day grace period twice a month. It's a lot easier for me to make one bulk mortgage payment sometime during those 15 days because I know I will get paid every 14 days. With this new program, you can literally get hit with late fees TWICE a month instead of once. If you get behind, you will have double the number of late fees piled on, and they happen much more quickly.