I'll be in Paris mid March and am looking for salon de thé's to have a nice breakfast. And by nice I mean pretty surroundings and good croissants. I'm really out for the best croissants, I know a lot of great boulangeries for really good croissants (Hermé, Blé Sucré, Le Triomphe, Des Gateaux et du Pain etc) but I'd like to sit down with a cup of coffee too.
How good are croissants (and pain au chocolat) at Ladurée? They have nice tearooms.
I know that croissants is Paris are probably good at any corner cafe but I'm not looking for good, I'd like exceptional :)