FYI: for tourists - go for good sandwich, but not for atmosphere.
I went onto yelp to look for a good diner/deli place in Vegas while I was visiting for a few days. I saw that Cantors deli (LA) and Carnegie deli (NYC) had clones. I've eaten at the originals of both and loved it. Then I saw Capriotti's and it's really high ratings and the low prices. I haven't been to a Capriotti's so I thought I'd try it. I was expecting a Cantors/Carnegie sort of place.
As soon as we got off the plane & checked into our hotel -I dragged a coworker who had never been to Vegas. We took a $12 cab ride (for 3.5 "Vegas blocks") just to get there and expected a sit-down diner type place.
Our taxi driver couldn't even find it because it was a small store front in a strip mall. We walk in and it's just a counter to order at, a couple of tables.
I was actually quite pleased with my turkey, stuffing & cranberry sandwich. Real trukey. Actual cranberries. mmmm.
My coworker was NOT happy due to lack of atmosphere, no drink choices (only water or OJ) and the fact that there was really only 1 vegetarian sandwich and no salads (which she was craving).
The other patrons seemed to all be UNLV frat boys talking about drinking. And there were people outside smoking which drifted in... ick.
So, really good sandwich, I can see why locals love it. For us though, not sure it was quite worth the taxi ride, and certainly not a good introduction to someone's first time in Vegas- who's been wooed with the glamorous dining options available.