Absolutely love using this card... with my extreme paranoia of identity theft and the likes I feel like I can safely buy things online again.
All anyone needs is to get a code (go to the local gas station or whatever - give the guy €50 and he gives you a pin code), then you can go from there. All major gaming sites accept the card as well as amazon and itunes. And if, by chance, other online shopping needs should be met, the HP offers a great variety of other sites and services that accept the card! It is really a great idea and so very easy to use.