Powerflex ARB bushes...

As posted last week I got myself a 200 cup ARB, was supposed to fit this weekend but ended up working so didn't get chance. Anyway, I digress...

Is it worth changing the bushes for powerflex ones while I'm on, or just new OEM rubber ones? I've tried to find a definitive answer online as to whether the improvement in performance is there and if it's worth the premium price? Anyone changed theirs who can let me know?