I have gotten payouts, i upgraded to v 1.1 and it has payed for itself like 5x so, its free if u want a few free .005 btc every few weeks (minimum withdraw is .005 and it takes ahwhile to get there, u get 40 sat a minute for free) , if u upgrade u get alot more.
That is probably a scam I used to register there before in that kind of scheme but can't withdraw my earnings. Their rates are too good to be true but they require you to deposit some btc in order to withdraw your earnings but I don't give shot.
Its like a cloud mining but does not exist probably a ponzi hit and run scheme.