First discovered Five Guys in El Paso while moving from Dallas to Las Vegas. As soon as we got to Vegas, we said "We've got to find a Five Guys in Vegas!" Wasn't exactly close by....drove 20 miles to get to one. I'd be hard pressed to break the tie between Five Guys and Fatburger, and I love Fatburger.
I'm not doubting the validity of the posts by other good yelpers, but my experiences here have always been great. My burgers haven't fallen apart, I know how to read and understand the difference between "hamburger" and "little hamburger", and the music is NOT too loud and I'm an old fart at 57. I've enjoyed Five Guys in 3 different states now and the consistency is solid.
Give 'em a try.