It's overrated. The food is slightly above average, but it's not valuable. Macaroon is also not better than Laduree. Expect least for service as they're quite impatience and arrogant(maybe for Asian).
Very touristy, meh service. Decent eclairs but at 3X the price of what we saw at other very good (less touristy) bakeries and cafes in Paris. Hot chocolate was good not great.
The macaroons are some of Paris' best. Also try the pistachiomadeleines. Baked goods come in daily. Wish my hips could have allowed for a chocolate eclair; looked dreamy.