I think they’re relatively new, good addition to the surprising dearth of these fancier patisseries in NYC! I can only think of Ansel, Chanson, Laduree, Pierre Herme (and maybe Kayser) as alternatives.
Is it just me or were there more of these patisseries 10 - 15 years ago?
La Maison du Macarons has a very wide array of excellent macarons and an assortment of delicious pastries, croissants, and Danish. There is a pleasant seating area in the rear.