I've done stealth audio there but not photo. It's a fairly large theatre with a balcony. There are ushers and some security but I wasn't particularly stressed doing stealth audio. I'd say it probably depends on where you seat is and your descreteness will vary accordingly. There were aisles on the floor on either side and up the middle and I seem to recall ushers/security having a mild presence but nothing too uptight. Sorry I can't of more help - great theatre, however.