Do this. I ran my P4e in parallel with my frag system first for quite a while before I did the swap, same with my DT. I'm not 100% replicating functionality that I did with my Apex, but I've learned for some things it's better to give up the 'all in one boat' control, like for my power heads.
I do find PL gates get very confusing, and I do miss simplicity in some things like a simple "if outlet on then" statement to drive an event, but over-all I do not regret the switch. And my switch was a very entrenched Neptune install, 2016, 4 dos, 3 bars, pm1, vdm, etc.