Thanks for the replies, I have been looking more into the different options available and found another one called cloudbet. According to their website, they give a 100% matching sign up bonus (have to bet a certain amount of times to get the bonus, but you get a year to do it, so should be achievable). I think anyone who invests in cryptocurrency has a gambling streak in them anyway, it is not for the fainthearted. I don't tend to gamble too much, but like to take a risk now and again. Huge future in blockchain gambling once it breaks into the mainstream and the more sites there are , the more likely that is to happen. Trust is a huge factor though, and I think if one website had a security issue, it could reflect on the industry as a whole. Over time, there will probably be less than 10 big players in the field and that's when we will see the real potential.