I still play this build using dual cospris and while the DPS is extraordinary, it is a glass canon.
You either kill your target before it HITS you, or you die.
Forget about Sirus unless you have a razor sharp understanding of the fight. (ie: expect to lose at least 80% of your exp bar).
I checked other builds including phase acrobatics and they seem a little more viable, although you lose a lot of dps.
The best one is IMHO the ES build you linked.
https://www.pathofexile.com/forum/view-thread/2733675
My builds:
Standard, based on this one, with dual Cospris:
https://pastebin.com/uUGYdHh6
Phase acrobatics, still strongly inspired from the original:
https://pastebin.com/s7a9FGRY
It's pure DPS glass canon build, really. This is not a build to stand and fight, you have to move constantly and hope not to get hit.
If some fights have phases where you cannot hit (=leech) the boss or any other add, you're dead.
