Easily one of the best spots in town. Chef Bertrand Grébaut, an Arpége alum, serves a market-driven modern and beautifully executed French menu. You get three courses for 30 euros; six for 65. Unsurprisingly, it's not an easy dinner reservation to get. They're closed weekends and only take reservations three weeks in advance. Try coming at lunch or try their nearby spots which are open on weekends, Clamato and Septime La Cave.
80 Rue de Charonne