As part of the grand opening it seems most of the food items (hot and cold buffets, salads, deli, soups) are 50% off.
There seem to already be two Essen locations in Manhattan, and Yelpers like the ’3 types of oatmeal’ in the oatmeal bar, and the massive pay by the pound buffet of food featuring stations for everything from sushi to salads, to burgers to sandwiches, to soups, to bagels, to an egg bar, to a fruit bar. The customer here is seemingly a breakfast and lunch takeaway crowd, but the also have lots of tables to eat there. They also cater. Here is their menu from another location: http://essenslowfastfood.com/