Hopped in on one of my WD's, a weaker one with only maybe two Ancients and LegGems at roughly 25 to 30, no Despair upgrades, so no powerhouse by any means. Previous best with WD was a 66 (casual remember) on a way stronger character, and I promptly ran a 68, died once, had over 5 minutes left.
Completely anecdotal, no statistical anything to derive from this but you know what, I had fun! This will be my target build upcoming season.
Already had the RoE, but it was Cubed, so it did upgrade. Only difference I'm aware of, and it was indeed noticeable. This is a sizable bump to the build.
I just ran a basic dogs/gargs/Helltooth build that was already put together weeks before the patch. Low level gear, not very impressive, but I had read the ring was getting a bump so I left it alone for later.