we were a team of four friends at the base than I initially motivated to bitcoins. it's been months since they asked me to refund their investment. Now that the machines arrived they no longer want to hear about bitcoins and want to be reimbursed immediately.
And personnaly I do not want mine, I'm not a geek, I want to keep bitcoins on a USB key and wait until their value rises.
Simple not ?
And Butterfly is not our first investissement we lost many money in other Miner they never be shipped...