Tax Slayer was reasonable easy to use, but this year I was charged $40 for not using my credit card to pay their fees. I do not even recall seeing where I had to option to pay the fees separately. They took the fees out of my refund and then tacked on a $40 fee. It is mentioned deep within their terms, but they did not make it obvious that you could avoid the extra fee by using your own means of payment. I have used them for a few years, but will not use them again next year due to this underhanded policy.