It's hard to beat Kozue's combination of exquisite seasonal Japanese cuisine, artisan crockery and distractingly good views over Shinjuku. As the kimono-clad staff speak English and the restaurant caters well to dietary restrictions and personal preferences, this is a good splurge spot for diners who don't want to give up complete control. Reservations essential for dinner and recommended for lunch; 15% service charge.
The cheaper lunch options are only available on weekdays, when, for an extra ¥1000, you can follow your meal with coffee and dessert at the hotels's Peak Lounge & Bar.