EP is very good. My monk team is now able to do T6 decently and I have completed a GR32 so far.

I don't think you need the Fist of Az. EP is really only good for clearing trash fast and the lucky times when you get an elite pack surrounded by little guys. It greatly speeds up our clear times. Where monk's tend to fall off is in single target DPS. I am currently using Vulture Claw Kick (LTK) as I don't have good Incense Torches for my team. Two-handers are where it is at for dps now. Each member of my team has an ancient legendary over 4k and it just does so much more damage than a DW setup can ever hope to.

Once I get lucky enough to get a few more torches, I will probably swap over to Pillar of the Ancients because it is our best single target skill.

I feel the things holding me back right now are single target potential and survivability. My monks still feel pretty squishy in GR's above 30 and I still clear them in less than 10 minutes. Kill speed doesn't feel bad though.