I lived in it in my student days, nasty trap, it was interest free but I left uni -£2000 in it. Thankfully I paid it off before interest set in. DH and I both have them but only because we haven't removed them, we haven't used them in years, I refuse to pay interest. We don't need to borrow money anymore as we have savings, but we have a credit card we use (for the perks!) and pay it off end of the month, if we needed extra money we would use that but pay it off that month. If we needed it for longer than a month I wouldn't borrow money, refuse to pay interest, except student loans of course!