I would second all the five star reviews on Yelp. Best pastrami I have ever had, better than the best in NY, LA. Definitely, the crown jewel of CLE's culinary scene. No need to waste any more ink (or pixels) on how great they are at their craft.
Pro tip: order the pastrami, corned beef, and every other sandwich on the menu. Take a bite of each for your meal, pack it to go, and then repeat for the next 10 meals. You may die from all the unhealth-fulness, but it would be a good way to go.