I had their grilled cheese and espresso, both of which were disappointing (especially compared to what Patrice get me used with his pastry menu).
They used some sort of brioche bread without that isn't buttered whatsoever, resulting in a dry and flat sandwich. Considering they charge $10 for that and that Patrice supposedly worked at the "400 coups", I can't safely recommend going there for lunch or brunch as there are other options both cheaper and tastier around.