I also found this: https://www.facebook.com/Funkloch-684514891598702/ which is why I was wondering which of the locations it is.

Guess that looks legit too. Tho I like the other one because they lack any social media presence, which would fit with the theme ;)

it's the Weißensee one that I've seen. I didn't go there, just drove past. The other place in Treptow shows up on google more. But you would hope and expect a place that bans cell phones to not give a f*%# about their SERPs.