Let me start by saying this. I was raised by the son of a Jewish butcher from Newark, NJ. His childhood (and my own) included frequent visits to NYC and NJ delis. Those are some high standards to live up to. Based on that information, here's what I'd say about Caplansky's.
1 - the brisket is so good, even my Dad likes it. (a man so picky about his brisket that he's made his own at home since his mom passed in the mid 90s)
2 - KISHKA!! OMG!!! i love Kishka, to the max. they have it, and it's amazing. I haven't had kishka so delicious since my Nana died.
3 - their smoked meat is delish. go full fat - for reals.
4 - the service here is friendly, my coffee and water are always full, and that's not something i take for granted.
5 - it's nice inside. i like the ceiling.