Amarz, if your plan to check out a meeting I suggest showing up 15 minutes early, shaking some hands and letting them know you're new. If you walk in just before it starts you won't get the red carpet treatment, or have time to calm down and reduce your nervousness-which makes it hard to really hear things.
Noon meetings are less powerful than evening meetings by and large...you might hit a evening meeting during the week in the better part of your town for a good look at what AA can do for people.