I went to the Zürich Mama Africa a couple of months ago. The food was ok but the service was not. There was one person taking the order, and two other people rushing around serving and clearing the tables, and wine waiters doing their thing. The servers weren't really paying attention to the tables - for example we had missing cutlery but the servers didn't pick that up.

The worst thing about that evening was the guy with the TV camera, who kept wandering around the restaurant filming people dining. No asking permission first - just filming. We're not talking little restaurant pan shots either (no puns intended), but rather 10 minute close-ups of people and tables and the dishes that they had chosen etc. T*sser.