HaHa it seems like the operator of this site manipulates the bet history 
. This address https://blockchain.info/address/1HymtXgagEJjHQAX2UwpwrD6P1Vr6PAaF1 sends bets only to chain-bet.com and always wins!! With this behavior I don't trust this site
I think also the gambling sites also want your money than you, it is reasonable if it is done, at least not to play with the risk is much more reasonable . This address https://blockchain.info/address/1HymtXgagEJjHQAX2UwpwrD6P1Vr6PAaF1 sends bets only to chain-bet.com and always wins!! With this behavior I don't trust this site