We went to the Riviera Casino in Las Vegas last week and participated in the signup promo. I lost $500 and got $250 e-cash immediately. I got a voucher for the remaining $250 e-cash and can use it next month and have a year to redeem it. My wife lost $300 and got $150 e-cash immediately and a voucher for the remaining $150 e-cash. The restriction that we didn't like was we could not lose our money on any slot machine that had an in house progressive prize. Also, we could not use the e-cash on some slot machines. Besides that, we had fun betting the max on several slot machines. Too bad we never hit anything big.