Quite simply, their burgers are tasty. All the products used are of high-quality: 100% french meat, delicious buns made by a french baker specially for the restaurant, french cheeses (bleu d'Auvergne or cantal) and delicious french fries. You've also some much more unusual French-style burgers with fillet of duck breast or foie gras.
Literally called "Burger's Love", I'm pretty sure you gonna love this place! If you feel peckish near to Opéra, try this restaurant. The service is not of very high-standing but well done and quick. A lot of offices are located near to the restaurant, consequently you can mingle with some french guys.
I suggest the menu at 12,90€. You've as starter a salad with walnuts and then a burger for which you choose between two french cheese!