I don't club often but if I do, this could be a legit place to go. I dislike those nasty stuff about clubbing, but I guess that's the point many people go there. Talking about the club itself, Omnia did a pretty good job on music, stage, light, etc. It is the coolest club that I ever went so far. The patio section is also pretty classy with nice view.
Tips: the current price is $40 for ladies and $100 for guys. Water inside is not for free but $10 each (though it's Fiji).