Kepner's has been around for ages. In fact, it's where my Grandpa used to go grab a scotch with his pals back in the 40's. While I'm sure he would hardly recognize the place if he were alive today, I imagine that other than the multitude of flat screen TVs, the layout hasn't changed all that much.
It's small, so I can see why it would get very crowded. Still, I came in on a business trip and stopped by to visit the town where I had spent many a summer vacation as a kid, and mad a special effort to check out a place with a ton of history. It was packed, as there was a Thursday NFL game on, but I managed to get beers with little difficulty.
Didn't try the food, but there seemed to be a bunch of folks enjoying standard American bar fare.