We went to Max with 4 persons and order 4 simple waffles. The waffles were 13 euro's each. Before we even had the waffles and drinks we were presented with the bill to pay in advance. The waffles we received were OK but not worth 13 euros. After paying 60 euros for 4 waffles and a beer, 2 of us wanted to go to the bathroom.
To our surprise, they wanted to charge an additional 50 euro cents for visiting the toilet.
Lastly the waiters were very arrogant. Max has clearly had it's time, it's a waste of the beautiful building the are located in.