One never knows for sure. We all gave a wary eye at the beginning to likes of Gyft, eGifter, Purse, and others.

But CardCash has risen to be the world's largest gift card exchange, they have a generous 45-day card guarantee, and no one on the bitcoin fora has had anything but the best to say about their service. I have placed about ten orders with them, with only one favorably-resolved problem near the beginning.