I've talked maaaaad shit about the Key before, but I had an amazing time. I didn't find the Key to be grimey at all. There was always room to dance, the vibe was great, the air quality was fine (as far as I'm concerned), the music got better towards the second half and I danced my muthafuckin ass off like never before. All the sets were slightly above mediocre, but enough energy to keep me going. I missed Frankie Bones' DnB set, but his set in the main room opened up beautifully.
As usual, going from the main rooms to the outside area was a little time consuming, but no real problems.
As far as security, the only ones I saw were at the door and didn't do a very good job at searching me. In fact, I didn't feel very safe as no one was monitoring the metal detector and it didn't look like it was working in the first place.
I did happen to hear about the kid who got bumrushed for smoking a dip. My friend witnessed the kid being piledrived in the face and then down on the floor where his blood was smeared all over. And the partykids just walked through it--yum. I didn't even see security the rest of the night.
Long story short: Went with good people, made a pact to enjoy ourselves regardless of what we might enter, got in with no wait, slowly warmed up, smoked a blunt (for a worry free evening of course), danced our asses off, and had the ill after-party at Brooklyn's house--awwwww, shit!