I have to agree with Pache253... If you are high-maintenance, please stay away. Find your way a little further down the road to Ghost Bar or whatever joint where "Stylish Nightlife Attire" is required. Their bathrooms are, I'm sure... cleaner.
It's been here for 25 years and still stands in a place that has seen MANY bars come and go. It's held together by history. The walls are plastered with Texas flags, neon signage, John Wayne, and photos of Willie. Everywhere else is covered with permanent marker graffiti dated back to 1984. It has the best country jukebox in Texas. Of that I'm sure. From Bob Wills to Patsy Cline - from Ernest Tubb to The Band. The burgers are greasy and fat and the beer is served in the cans God intended it to be in. If that's not too low-class for you then you'll feel at home at Adair's so by all means try it out. I'll likely see you there.