I think one of the problems with all the reviews of this club are the fact that they are from years ago. I've been going to the BA since I turned 18, and have never really had a bad experience. It's the atmosphere. If you don't go in expecting bushels of drunk, screaming, sweaty obnoxious people - you're doing it wrong. Back Alley is the definition of a club.
Sure the music is deafening, sure the bouncers can be assholes, and sure the dance floor is full of guys trying to mack on chicks. But what do you honestly expect?
If you want something a little more low-intensity, the BA is not for you. If you want a good ol' eardrum splitting time, dancing hot and sweaty - you'll be at home here.