Obviously an excellent, well rounded beer selection. That's what you're going here for, right?
If you're hungry, don't expect a wide selection from the menu. It is neither lengthy nor diverse, and it is a bit pricey for what you get. On the other hand, what I ordered was served promptly and was super tasty.
Service was excellent, and the bartender was knowledgeable about the beers available, even offering a taste before having to commit to a beer from the on-tap selections.