crap-ass DOM xsd schema validation?

Hello, To put it bluntly, has anyone here been able to get the PHP5 DOM extension to validate using an xsd schema worth a rat's ass? I'm finding that it doesn't enforce required attributes, dies on any global complex types, has uninformative validation warnings, and basically sucks. Any comments from the core devs on how likely this is to change dramatically for the better would be helpful. I literally will have absolutely no reason to use DOM at all if this feature isn't improved, as it seems to be a lot slower and much less stable than using a sax parser. Greg