you can find a more detailed explanation of the build here:
I don’t have nearly good enough gear pieces to outclass the “standard” setup yet, however from my ptr tests I can say: It is definitly easier / more comfortable to play, so if you have the correct rolls to replace your standard setup: go for it.
I still think in the end for the most profesional players out there (which I’m not part of…) the standard setup with the extra slot will perform better, but for the avarage player it is definitly worth it.