Au gout du jour is such an Impressive French restaurant group for this pricing, and has 3 restaurants in Tokyo. You'll be content whichever you go to. Suitable for anniversary meals. Wearing a jacket is recommended.
My rating: 5.0+ (Awesome!)
Au gout du jour Nouvelle Ere (Au gout du jour Group)
Web | Tabelog | 03-5224-8070
Address: ShinMarunouchi Bldg. 5th floor, 1-5-1 Marunouchi, Chiyoda-ku, Tokyo
Access: 3 minutes from Tokyo station
Budget: 6,000 JPY or more (Lunch) | 10,000 JPY or more (Dinner)
Open: 11:00-15:00 | 18:00-23:00