In the PTR Feedback forum, it was reported as a bugged item: Full Mechanics of new Legendary Affixes incl. Bugs and a QoL changes
It uses the legacy “+X.X attacks per second” code and not the current multiplicative value. The legacy affix applies to both weapons and could potentially make dual wielding even stronger than it currently is. That’s no bueno.
Nev responded in that thread, but didn’t say anything definite aside from there’s lots of work to be done on the item. If the PTR affix stays as is, it will be great for LoD HOTA up to a point, and that point is where your outgoing damage is insufficient to maintain stacks in fights. Just speculation on my part. Personally, I’m betting on a nerf, but all I really mean is that its legacy attack speed value will be changed to the current multiplicative value found on items like Istvan’s and the BK swords.
Even if it’s not nerfed, this isn’t really a buff so much as something that allows us to use the Dreams gem in place of Gogok. Like Mortick’s, it’s less a buff and more of a lateral swap. We’re still waiting on actual buffs, and by the looks of it, we’ll be waiting another patch or two.
So, I wouldn’t bet on the LoN or LoD HOTA build being much stronger than IK HOTA. The 128 clear proves it has just as much power as IK HOTA, and it very well could be stronger, but I’m reserving judgment until we see next Season’s clears.