Problems with Maven integration

I have problems with several Maven projects Idea can't open properly.
I think it would be great if you added some "real world" projects to your integration tests? E.g Wicket trunk or Spring Rich Client?

There exist still several flaws. Just try to open some bigger Open Source projects and you will find them very, very soon. Many projects can't be compiled with changes to the modules (exclude directories, archetypes)...