Sorry to say, but I disagree with you. As I can see this is just another copy of freebitcoin with some additional games. The Hi-Lo dice game has the same house edge with freebitcoin which is 5%. About the deposit, actually they are not instant IMO as there is 1 confirmation needed. On other side, the withdrawal fee is so low (1000 satoshi only). Maybe they will process withdrawal instantly, but I think user will need to wait for few days to get the transaction confirmed. I wonder, how they will cover the huge transaction fees if they only charge 1000 satoshi for withdrawal.