If you are living paycheck to paycheck paying interest on debt, borrowing more money (no matter the interest rate) is not a good idea.
If you're paying off your credit card balance in full every month (using it for convenience / airmiles / rewards etc) then you have options ...
If you can borrow at an insanely low rate taking into account ALL of the fees and commissions AND that you will have to take out full-coverage insurance (if you would have done this anyhow, then it doesn't matter) ... It's better to leave your capital invested, take out the loan, and just make the payments.
My brother-in-law (retired, and well-off) just moved to a new house ... and took out a mortgage at <3%, and invested the proceeds from selling the old house ...
I just bought a new bike, but rather than financing it, I paid cash, then in an unrelated (to the taxman) deal, borrowed from a line of credit and invested that ... the advantage here is that the interest on that loan is tax deductible. $-)
If you don't have the resources to play these games, you probably shouldn't ... and by not doing it now, you have a better chance of being able to play those games later in life. "Live within your means"