Sportsbet.io is a horrible sportsbook, aside from their awesome promotions. They advertise having the best odds, even when I have proved otherwise, multiple times. They even admitted that having the best odds is not possible (it is, for most events), but still refuse to change it. Their margins are higher than most sportsbooks, and they have been accused on rigging their raffles, since some players have won the top 1 BTC prize twice/three times. Their market selection is pretty good, but again, the odds are shit. I wouldn't trust a website with my money if they lie to gain players, and keep falsely advertising when they admit it isn't true. Promotions is the only reason they don't have a 1.