We didn't care for it. We're both 22, no kids, and couldn't get out of there fast enough.
We figured we may as well check it out, since we like the bar/club scene and the music sounded good from farther away. So we watched the portal show and then followed the herd into the main area. We made the loop once and never went back. Too loud, too dark, and people were dancing all over. Not that there is anything wrong with dancing, and it normally wouldn't bother me. It's just the way they were dancing, throwing out their arms and legs all over, I almost got punched several times. Not to mention the people that were break dancing all over the ground too, many of whom were hard to see.
We went into the arcade too, because DH loves video games, but he didn't want to play any of them enough to stay in that area. We went back to DL for the rest of the night.
I might suggest trying to find videos of it or something first, just to have a better idea of what it's like. It's possible we just went on a bad night, but still. I feel like we wasted time on it.