Kornhauskeller is very suitable for a business dinner in the winter months
There is enough space between tables and most of them are round which is goood for businnes but can feel a littel impersonal.
The wine list as well as the menu changes often has a few seasonal dishes. The antipasti bar is great you can make your own place with as much or as little as you want.
The price is quite high however the quality is up to par.