I will be visting Medellin in September Protected content an exploratory visit, with the intention of retiring there in Protected content I like what I find.) So far, all annecdotes of life in Medellin have been extremely positive.
I would enjoy meeting up with other transplants for a coffee (which I hear is spectacular there) or a beer to learn of your experiences and suggestions. Or post here.
Also, I'd like to take some tours. I have discovered the Free City Walking Tour and the tour to Comuna Terce.
There are tours to the surrounding villages and coffee plantations offered in English, but they seem to be offered at gringo prices on sites like TripAdvisor.
So if you know anything about tours outside Medellin in English at a good price, please share here or via PM.