Me too dead easy charge it up and its credited real quick - you can also choose a euro card or a dollar card or a worldwide one - fair rates of exchange too and no mahoosive withdrawal feesDepends where you are going.
I use FairFX cards http://www.fairfx.com/ when I'm away.
You can get them in either Euro's or Dollar versions and their exchange rate is one of the best as well. Only tip with these cards though... if you pay for dinner with it lets say.. don't include the tip on the card - pay cash. if you don't then you have to pay a ghost charge! silly I know - but nothing is 100% perfect.
Its a bloody good card and as I said - I use it all the time.