I've heard both ways about taking a non-AP guest into the AP lounge, some things I've read say no, some things say like one non-AP guest per AP. As for any other unlisted benefits, make sure you have the new AP sleeve, they print new ones like once a year or so. The expiry date for the benefits listed in the sleeve can be found on page 1. As for things not listed, they send updated info on new benefits in the Monitor, and you could always call and ask. I do know that right now an unlisted benefit is priority seating for Shockwave is available for AP holders, you get the passes at the EC AP lounge. Other than that, I don't think there is anything else not in the sleeve at this time.