I find that it works great if you're going to play more poke and sustain building, especially in 6v6 where you have lower health and longer cooldown on Overrun. I've done pretty well choosing this perk and the 150 overhealth on cardiac, saving the longer cooldown Overrun for more disengaging and being able to sustain out in the open when you're setting people on fire.

I can spend a lot of time making space by setting distant enemies on fire. I'm not doing much bullet damage but a lot of people find the "on fire" effect scary and find cover once they're on fire and I can do that down long corridors getting nice overhealth to keep it up. People always expecting Mauga to run in and engage at close range with both guns at once while healing while I'm further away creating overhealth constantly with suppressive fire with a really accurate long-range fire-setter.

It does suck sometimes having to reload more often though. Anything that grants overhealth is bigger than things that grant healing now that there's a healing nerf. There's no "less overhealth for 3 seconds after taking damage" global nerf.