Due to the lively requests for restaurant recommendations, here are some ideas for further investigations:

Stars kitchen
Fischers Fritz
Facil
Margaux
Vau
MA Restaurants

Fashionable and VIP Restaurants
Grill Royal

Upper Middle class/ business and evenings
Oktogon
Diekmann
Aigner

Traditional
Zur Letzten Instanz (website only in german)
Weihenstephaner Berlin