Question: Is it FREE?
It is free for the first 3 rigs. You will then need to upgrade your account if you want to add more than 3 rigs. We are also considering the possibility of removing the limit but a portion of your miners time will be alloted for a dev fee or your rigs will only be allowed to mine on our pool.
NOTE: We are still on our beta testing stage and the limits above is currently not being enforced