I think everything is really nicely balanced EXCEPT for P2 Warden. Solo P2 warden is almost risky now because without the spec regen, you're looking at a 3-4 core P2.
I guess you could do life/chaos and just tank out the extra 2 phases, but you're losing out on an EASY 2-3 minutes because of it.
Of course, in groups you can share the adren pots between people. My quirk is with solos.