Yes, but like I said, the business isn't cash only anymore. But even if they were running a secret opium smuggling ring using, I dunno, panda bear slaves, I would still buy their food. So good.
So, for those of you like me, who don't usually carry cash around, I found out that they finally (In the words of the proprietor) "Joined the 1990s" and got a debit machine.
I have been hitting there every day for lunch again. Still amazing value (I don't understand how they make a profit), still great food.
I feel the need to throw a rave review into the pile for the mushroom soup. It's pretty great. In a way I'm glad they only serve it Wednesdays as I'd probably be eating it more than would be advisable (that, and I never seem to be able to just get a soup when I'm in there--cheap liverwurst on a bun? Oh, okay, I'll take two...)
Re: vegetarian options...
Do you enjoy sauerkraut? A good size bowl would be quite filling.
There are only 170 vegetarians in all of Germany - population: ~82 million. :)
They don't have a website. Once you visit, you will understand why. It's part of their charm.
James C.