The idea is fantastic, but their costumer service is incompetent to say the least.
I placed an order in the end of March and until today didn't receive it. I've contacted the company who offered refund, but not a plausible explanation for such delay. Finally, last week, I received an email saying that my order was being shipping, just to find out that they created the label, but dint ship the products. Today it still haven't ship.