Had a look at the new Raiment set on PTR and I have to say, that's definitely the go-to set after the patch hits.
I put on some random gear from stash, so not even optimized. Items of note, cindercoat, non-ancient furnace and reapers wraps.
I was doing 900M-1,1B crits on elites with dash (blinding flash) and I can do multiple in quick succession due to reduced resource cost.
Stacking even more resource reduction lets you do more and I'd say it sure is worth it.
Can't really test the new SWK + Inna set bonus since I cba looting the new Inna items. Gonna wait for season 3.