This is something new and we have nothing to loose, just give it a try. As far as I know after doing few research on google, reddit and bitcointalk sounds too good to be true as 50 tokens have a value of $80 at the moment. You get 50 tokens just for signing up. It’s free money, nothing to loose.
However you cannot withdraw the coins at the moment, but the message indicate you can withdraw to your waves wallet once ICO ended and I have no idea when it start or end.