Bumping this up. I started a company down in Medellin, visited for the first time back in November and headed there again soon.
People are amazing, as everyone here has said. Food was decent. Only got to spend 3 nights there - next trip is for a week. I'll be heading there about 3-4 times a year, and am planning (eventually) to see San Andres (everyone there told me that's the best beach area). Bogota - most say to skip it. They all like Medellin better, lol.