Well I bought HD earlier this morning, I played through enough to unlock auricom, and the AI from novice to skilled is a huge jump. I think novice is much more like pure than skilled is .

Other than that its just as great as pure and pulse, but the controls are much tighter/finer, so I'm sure there's plenty of room to get to the level of proficiency I have in 3se.

I thought that playing through the campaign would be boring the nth time round, but the wipeout thrill is still very much intact!