Basically, easy or hard win with dice games depends on mulitpliers. Choosing higher odds to win will result in easily wins with very limited won rewards. In contrast, choosing lower odds to win will cause less chance to win, but when dicers win with their bets, they will get more won rewards. So, if they don't mention about multipliers they use to bet with their dice, I don't see proof to call that win dice games on CyberDice is easily.