Why you dont try it yourself while you are promoting and getting paid for their signature campaign instead of asking others to give a review? You can spend few percents of your campaign earning to try the game and share your experience here. So it will be like a mutual-ism symbiosis between you and the site, you dont need to risk all your earning, few bets with the minimum bet amount is enough if you want to help them to improve the games/platforms like what you have just said.