Wilensky's is fucking glorious. There's no other way to describe it.
Yes, I realize it's touristy (now) and it's riding on the whole nostalgia factor and the stern rules gives it a unique charm.
But seriously, the Wilensky's Special is probably the best $3.90 you can spend on food. The skill is in the simplicity - grilled beef salami and bologna with mustard on a flat-grilled kaiser roll with your choice of cheddar or swiss.
I rolled by for lunch and grabbed a Special with some pickles and one of their house-made sodas. Then I went patio drinking at Dieu Du Ciel down the street.... then I came back to grab another Special while drunk. And it was damned good on both counts.
It's impossible to not like this place.