Well I've never used the site so I don't really know the ins and outs. Looks weird they talk about amazon gift cards but place an itunes image. They do state you should release the funds after use of the card. So really you shouldn't have to take on any risk there, if you buy and use the card balance immediately.

The last review though states they were sold a used card, which means they are likely waiting for the chance to scam. Offer sounds fishy, and these cards are all likely the result of them scamming someone else to begin with if they are actually honoring this deal.

Edit: Why not go to currency exchange or Services and create a thread that you are looking to sell BTC for an amazon gift card, or for someone to buy and reship for you with you paying in BTC. You will likely have to go first as your account doesn't have a lot of history, also be careful who you deal with. What country are you trying to buy from and ship to?