We've had breakfast and lunch at Weiss and loved both meals. For breakfast, the bagel sandwiches are enormous. I recommend adding the home fries to the sandwich for 95 cents. They are made with onions and really add flavor. The sandwich can be difficult to eat, but get after it with a knife and fork and you will be in good shape.
For lunch, my usual is the Reuben. This sandwich is LARGE, easily 2 meals. Loaded with cheese and sauerkraut, it's the perfect amount of each ingredient. I recommend heating it up in a toaster oven or regular oven, rather than a microwave. It kept the bread crunchy. My wife likes the chicken noodle soup, which uses angel hair type noodles and lots of herb, particularly dill. Highly recommended.
We usually get some bagels to go to make sandwiches at home. Fantastic everything bagels! They also sell all of their meats by the pound, as well as many other items. They make their own corned beef and pastrami, and it shows.