It seems to me that outside of Satmar & some of the charedi community, most people don't know much about him or they've only heard things twisted around negatively by people who cannot see past the fact that he opposed not individual or small-group yishuv ha'Aretz (there is, after all, a Satmar community in Eretz Yisrael that does not accept money from the government), but he strongly opposed Tziyonut.
(And those who know the true history of the secular Leftists regarding Israel tend to at least understand where the Satmarer Rav was coming from, even if they personally follow a different hashkafah.)
The Satmarer Rav was a tremendous ohev Yisrael, who also earned the respect of other great talmidei chachamim for his Torah scholarship & unswerving dedication to Torah & mitzvot — including those with him he disagreed.
Here are 2 articles in his honor: