Katz's is sourcing from one of the major hot dog makers. Can't remember which one. So there's nothing truly exclusive about the product. I know I've bought a hot dog at Katz's for someone not into pastrami.
I'm sure they're fine.
Websites regularly publish Best lists. They know they generate lots of clicks and they're right. I fall for those things every time. I know I'm being manipulated but I can't help myself - I feel ashamed.