For the most part, very successful. Not sure about what was known about those people, whether there was prior knowledge of their cannibalism or if he walked in blind.
But Jesus gave a pretty good guide of how to approach folks in his interaction with his own hometown. Basically, he said that if people are not open to hear the good news, shake your boots off and leave. Does not appear at all to me that the cannibals were open to his message.
Got to close out the month at work.
Just like Jim Elliot and the four other missionaries who were martyred Huaorani people. A people that is now not only peaceful, has a sacramental view of marriage, but is worshipping the living God because of the work of those men preaching the Gospel.