They check your bag and have metal detectors at the entrance.
The venue is easy to get to from Penn station by taking the Q train downtown into Brooklyn.
There is one out-of-the-way bathroom block for 2500+ people.
I have been using it now for 3 months and it saves me so much research. Reduces the need to call and double check every time.
How did I not know these places existed?! Atly's scoring is a lifesaver, now I can finally find THE spot without wasting time Googling my life away.