the graphics of the site in attractive which will definitely attract the players to take part in the site. But it take some time to load. I will say that you have to work to make the site a little lighter.
Such a large amount bonus well let see if this is legit i just make an account just now and test.
How looks like the site still low amount of games.. and i think you must add more sports and if the site still a beta test better to hire someone in services section to find a bug and start a campaign once you done adding a lot of sports ..
They are giving a large amount of bonus but that amount is only for to play the games and if someone play with 20x of that amount and then he will have some funds in the account then he will be able to withdraw. So I think it will make the secure from losing too much money from the owner.