The drink I'm afraid, not the music...!

So I've become aware that the Cadbury's brand of this stuff (the one you buy in the purple tub) is full of sugar... (probably why I like it so much!)

But has anyone tried Green & Blacks hot chocolate? I've only recently become privy to information on its existence. If so how does it compare with Cadbury's? Is it less sweet? Nicer? Cleaner? Where can I get some? I think I've only ever seen hot chocolate by Cadbury's although I can't actually say I've ever looked for anything other than Cad's.