Ah, I played with these bonuses around a year ago.
This bonus is very good for the players of Live Dealer's game as the casino name has "Live" in it.
It is especially very good for Live Roulette players because the bets on certain roulette tables (probably named as Sky Roulette) contribute 100% toward wagering requirements.
But, also, there are certain restrictions - the max betting amount like 25% of bonus, and under 14 spots, etc.
But, again, this is very good bonus for Live Dealers' games.