While I want to think well of Father Martin, unfortunately, the final verdict is that we simply cannot trust anything he ever said, so at the end of the day, he's made almost no net positive contribution for the benefit of the Church. I pray for the repose of his soul, and in some ways he seemed like a decent man (to the extent that we can know), but there's much about his that makes it impossible not to suspect him. He admitted himself that he got a rush out of blackmailing Cardinals and bishop on behalf of his employer, Cardinal Bea, highly suspect of having been a Mason and a crypto-Jew, and of course Fr. Martin specialized in Semitic languages, showing yet another sign of affinity with Jews. That alone makes it simply impossible to trust him, since no "good guy" or "white hat" would ever engage in such incredibly immoral behavior. I knew someone in the early 1990s who at one point followed Fr. Martin around on some of his lecture tours, and he told me that he saw Fr. Martin change his presentations to suit whatever audience he was going to speak to, in an obvious and transparent attempt to ingratiate himself with whatever their viewpoint was, so that you'd get a different tone depending on whether he was speaking to R&R / SSPX types, Conciliar Indult types, SVs, or Feeneyites. Even if he had been 99% truthful ... that 1% suffices to render everything else useless, per that legal principle of falsus in uno, falsus in omnibus where if a witness has been found to be untruthful / lying about even a single point, then you can't use any of what he said as evidence, since at that point you just can never know when he's telling the truth and when he's lying, and I'm afraid that's what was the ultimate final verdict on the career of Malachi Martin.