As I have family in Ladenburg I've been in Caffehaus several times already.
The food is decent with special focus on sesonal dishes (great Duck in December for instance), cofee good, drinks interesting.
But the service...The smile is at scarce and the waiters (aspecialy one) are so serious and distant I feel uncomfortable at such place. Rather generous tip has not helped and we didn't receive neither "thak you nor "goodbye" and there was no reason for that on our side - we are normal, welll mannered people, not a bunch of hooligans ;).
When you work in service, close to people, such kind of behaviour is rather starnge, or maybe I'm from a different world?