Emerald Skulls Review! (How well can you bet on other's luck?)

About Emerald Skulls, from BoardGameGeek:

In the grimy depths of Kulbak Prison, where the greatest Dragul warriors are confined, inmates gather around Nargash the goblin and his bone-carved dice. Best to keep your wits about you. A game of Emerald Skulls is about to begin… Emerald Skulls is a push-your-luck, dice gambling game. Attempt to fill the skull board with dice and place speedy, real-time wagers on the outcomes of your opponents' rolls. On your turn as the tumbler, roll dice and use tricks to place them on the five ascending tiers of the skull. But be warned - once you place dice, you can no longer put them on lower tiers for the rest of your turn! During your opponents' turns as tumbler, you are a gambler. Swiftly place bets and counter-bets on the results of the tumbler's rolls. You may wager twice per round, but can only bet while the dice are in the tumbler's hands. So think fast and bet smart - the quicker your wager, the bigger your payout! When the pot of gears runs out, the player with the most claims the victory. -description from the publisher