This was my first EDM rave and it was a phenomenal experience. The energy level, the music, the lights, the dancers, the stages... they were all amazing. The staff did a great job directing traffic in and out of the venue and were helpful once you got inside. I splurged for the VIP tickets and have absolutely no regrets. The VIP lounge next to the Labyrinth stage was wonderful - no crowding, air conditioned (and reasonably clean) bathrooms, and a dedicated bar.
There were a few areas where Nocturnal could have been better...
(1) not enough rest rooms in the GA area (VIP area was fine in this regard)
(2) alcohol was far too expensive. Now I know why people were drinking in the parking lot.
(3) no wifi hot-spots! I would think you could get one of the cell carriers as a sponsor - free wifi and they advertise their brand. Even the VIP area didn't have wifi.