Thank goodness for JJ when I'm on work travel in LV. Even though I can expense my meals I'm not too excited about spending ~$30 on an average tasting meal that is usually on the unhealthy side and/or when it causes time on the porcelain throne. The attraction with JJ is the combination of value (~$5.75 for 8" sub), a tasty and healthy sub made from fresh baked bread, quality incredients, meats and fresh veggies and friendly convenient service. Subway pales in comparison when it comes to taste, quality and freshness and usually Subway causes time on the throne so I tend to shy away from that place. My current favorites are Beach Club, because I love sprouts, and Italian Night Club. As far as locations, I usually hit up Maryland which is a little more spacious if I'm close to the strip or West Charleston if north of the strip.
I miss this place and hope they expand out to southern CA!