I didnt have any problems with the wifi there

Bariloche, Argentina is a very cool town with an amazing ski resort (Cerro Catedral)

Colombia is súper cheap and while you will see them in the streets Ive never seen a roach in my apartment living for over a year in MedellÍn. I dont think They like the altitude and cooler temps as much as super hot and humid like the caribbean or SEA.