They offer around 10 different types of burgers, with a monthly burger special. All of their ingredients come from sustainable and biological sources whenever possible. Part of the menu also changes depending on seasonable availability.
In addition to your 100% beef they also offer such delicacies as limburgers, a Spanish burger with chorizo and jalapeños, a royal beef burger with fresh truffle and a number of vegetarian options including lentil and feta. Side orders of jacket potatoes, corn on the cob and salad are available. Even the condiments such as tomato sauce and mayonnaise are made in the traditional manner using original recipes. Nothing here comes ready made from a pot.
The majority of people takeaway but they do have limited amounts of seating in each of the restaurants. It's not the type of place you come to spend the whole evening, but it's good quality, reasonably priced food in a comfortable environment. Prices for a burger start at around Euro 6.50 (price in 2011).