How are AAX VI's working out in PT11?

[jumle]

Hi folks

I've been anxiously awaiting PT11 for one specific reason, which is remarkably better performance with VI's, which have always been a pain in the ass for me (Pro Tools 9 on a Mac Pro 4,1) compared with almost any other DAW, as I believe it exposes the underlying flaws of PT code somewhat blatantly....
I always had ridiculously bad performance with this, while in Logic f.e., I could just keep stacking, stacking, stacking, stacking into the realm of the unnecessary.....

How are the experiences from you guys so far? Any differences?
Track/instrument count? Stability? CPU loads? Anybody doing setups now, that they could never do before in PT?

Give some insight on your experiences with this )