Guess it would depend. Capital one keeps sending offers of 3.9% for a balance transfer for the life of the loan. So, your offer can be improved upon. Does your card offer meaningful rewards? such as airline miles? If your payment is late, does the interest rate jump to 20 some percent?... If you know you will be paying off the CC in short term, it may be adventagous to run it through your card, but I think most would agree that in general, it isn't the best option avialable. Have you considered a home equity loan?