The food here is fresh and delicious, I never thought I would enjoy a veggie sandwich so much. The trout sandwich I had here was also pretty good, and the soups and bakery items looked and smelled incredible.
The worst thing about this place is how incredibly busy it is. It's always packed, with people waiting outside on the street since it's pretty tiny. They also have a weird semi-table-service method where you get seated, but then order at the counter with a ticket, then a server comes out to deliver the food (eventually). Then, you get up and pay the cashier. I guess they don't want to shout out order numbers.
As a lunch option, it's one of the best light meals in the Old Town. I personally liked Le Cartet better, but this place is good.