I signed up with them as part of a Swagbucks promo... and have religiously skipped my credit every month. This past month, I was billed anyway. I got my money back, but it was a pain to have to deal with.
I was excited to hear about the concept but I don't think they've done it very well. The jewellery is 'meh', and the quiz is 'meh' and the general design and everything else is also 'meh'. Why didn't they be a bit more creative with it all?!