Go to Our Lady's Warriors website and look at what they (very orthodox) say about the SSPX
Why go to "Our Lady's Warriors"? MegaSilver just said she didn't want "spin city". OLW say right on their website they are just a couple of lay people, although people quote and refer to them like they have some kind of authority. Their opinion is as authoritative as mine. Ah, the new Lay Magisterium.
Why not go to the horses mouth, the SSPX website? (after all megasilver did ask what it is that the "SSPX disagrees with" not what OLW thinks they do.: