I hate to post negative review but I find myself in a situation where I have to.
In my opinion, it is not worth it. Now, let me explain why. Schwartz's is a highly renowned and waiting for a seat is normal. I had to wait around 30 minutes before having a seat. I hate to say it, but the food was not worth the wait. I ordered a smoked meat sandwich with french fries and cherry coke and the food was nothing extraordinary. Also, the restaurant was cram with people: eating right next to a stranger is nothing unusual at Schwartz's.
However, eating at Schwartz's is a must only for the experience.