First thing's first--no Wi-fi--if that's what you look for in a cafe. But from a business standpoint, I completely understand. The coffee, roasted downstairs, from worldwide providers, and the skilled baristas, make for the best cups you will drink in Columbia.
They keep "normal" business hours (close up by 6pm I believe, but double-check), and get packed by the employees from the capital state buildings across the street during lunch, so plan your visit accordingly. They have enough to fill your stomach with several lunch plate specials, as well as glass bottled pop to bring you back to the days of yore. Add some wooden tables and benches, high ceilings and open flow, light music, good conversation, and pretty much any kind of coffee drink you can imagine, and this will fulfill your addiction or just make for a mentally comfy place to relax and get some enlightenment in the beginning, or middle, of your day.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.