I really like the site, it generates shit loads of transactions for the btc network and I assume/hope all the players are paying transaction fee's.
Fun game for a lottery, honest drawing, low house edge and getting to pick own odds (max variance is the best tactic when playing a game that is inherently -EV).
I never play real lotteries because of all the very low prices I don't want to win (next to the negative EV thing which would stop me from playing more than once a year even with max variance).