So...Can a SCH tell me how SCH's are right now relative to WHM and AST?

[Silver-Strider]

A full-pull Bardam's run is probably the worst thing you can base your opinion of a class on. Tanks who haven't upgraded past 270 get torn to shreds by small pulls in that dungeon. Healing a big pull with a poorly geared tank in that dungeon is incredibly hard. On my Bardam's run, the tank did big pulls and it was the hardest dungeon I've healed since the 2.x days before they started designing dungeons to limit how much you could pull at once.

It also sounds like you did this before the 4.05 SCH buffs, which really made a huge difference.

I'm not basing my opinion on just that pull. I'm basing it on everything that I've experienced since the SB release and the subsequent patch. The recent patch hasn't changed how SCH functions because all it did was buff Excogitation/Indom and grant more liberal usage out of Aetherstacks due to the changes to Quickened Aetherflow but the core healing kit was left completely untouched.

Large pulls are still more troublesome on SCH just because they don't have a better spammable heal than Physick and even with SCH's mitigation tools, it's often not enough, leading you to use Lustrate just to keep up. The only leeway I found at all was Rouse + Whispering Dawn being as potent as it's ever been and with it up the pull is much easier but the problem is that it isn't always up and due to the sometimes unresponsive nature of the Fairy, it can take several attempts to get it out, making the task just that more frustrating. I am much harder pressed to try squeezing in some DPS on my SCH than I've even been on my WHM because my WHM has so many safety nets that I can afford to let the tank take a few extra hits before I need to heal him but SCH's safety nets are all locked behind Aetherflow stacks and I don't have a bigger base heal up to match Cure 2 outside of E-tactics/Adlo every 20 seconds.

I like SCH and I won't argue that it's still possible to play the class but the skill ceiling for SCH has shot up significantly and considering that OP is asking for advice on the role, I'm gonna go out on a limb and say it's not a healer class that he should be involved with until he gets more experience as a healer in general because of it.