Short visit to Berlin. I'll give it 3.2/5, which is quite bad, but at the same time better than expected. It's like your average restaurant. Nothing exceptional. Toilet was due to cleanup a long time ago. The waiter is slow. You probably won't get food poisoning, but it's not fine dining. There's a shady guy at the back entrance. He might sell you drugs or rob you, can't really tell.
This is a significant downgrade from my previous rating of 3.75 before COVID, but I was expecting 2.8 coming to Berlin. So short term pleasant surprise, long term - Enjoy the decline!