I consider toolbars which are rendered double height to be nasty. Excluding apps does not properly exclude them: it does not cause the system scheme to be used, it renders them colourless instead.
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
I'll take that as a "no" then.
Is there some way to determine exactly which bits of OD are supposed to work with x64 without having to visit each individual piece's web page (if any) and/or history (if any) and/or list betas (if any) and/or install things and see exactly how they crash and/or break something?