I've not actually found much of it which does work properly with x64. Obviously there's a handful of things which aren't 64-bit dependant - the bitmaps being the most obvious of course.
I had to remove Icon Packager because with it installed the right click menu was missing from a tray icon (and only changes some of the icons it is supposed to change anyway). Enhanced Dialog makes no difference that I can see apart from different file icons in file open/save dialogs. Windowblinds is possibly ok with x64 but it does nasty things to Firefox/Mozilla, and excluding them from skinning doesn't actual exclude them, it causes their titlebars to lose all colour. WindowFX doesn't add anything I regard as useful (I used to use it years ago on W98 to get transparent icon text, but XP does that for itself).
Documentation is out of date or non-existent for most things. Many things go without updates for months or even years, and you often have to use the betas for months in order to make things actually work.
Not much has changed since I last let my Object Desktop subscription lapse four years ago really. Oh, there's a lot more glitz and promises of this that and the other, but the reality still falls well short. In my opinion, Stardock's problem remains over-promising and under-delivering, part of which is caused by trying to do far too many things at once and not doing any of them well.
Graham.