I play a PE and it's not worthless. I really like him.

I've done some duels last night and I won all my 1v1 fights. (against APU, spy and tank)
The people I fought are good players to me.
My PE is also good in OPwar where I bring him a lot at the moment (more than my spy for exemple).

The only problem on PE atm is you need WoC to get access to good weapon. I tried TSU rifle or TT rifle, it's not good. I also tried PE and TL92 pulselaser pistol which are not better. As far as I remember, judge and ray of god are not good.

To me, PE is really not a diing class if you have WoC (took me 2 days to WoC my PE (starting from 80 dext) <-- no exploit needed of course).

Non-WoC weapon need a boost though (PE, judge, etc ...)