Yes, the wait was long, but I have found this to be the case in many German food establishments. At least there was an above average cup of coffee to drink. Tip - the filter coffee comes in a two cup cafetiere; better value!
The food quality was excellent - all fresh produce and made to order. I must have had at least three eggs scrambled, and the French toast and fruit salad was more than enough for my partner.
We called in on the way to the airport around 10.30 - very comfortable atmosphere and pleasant staff.
It was worth the wait!