The Diamond Brothers of the phony baloney "Most Holy Family Monastary" have a hit piece on him, which in my book is one point in his favor.
The argument that "the enemy of my enemy must be my friend" is not a very sound one. Especially not considering that the Diamond Brothers have a hit piece on just about everyone else, including all the Conciliar Popes, which I do not consider my friends either.
Besides, I found their video (at least until the very end where I stopped watching) on Eric Gajewski quite objective, factual and easy to verify for yourself. I just don't see how asking for donations in order to buy lies with them is going to help the Faith.