Actually after clearing nhc and topping the meters on every fight on the beta - it feels nearly exactly the same as it does on live. Or more like it feels like it was in Eternal Palace. No 200% IT and shotgun HS, but never really liked that anyway.
Anyone saying glimmer is not viable or holy power this or that, has no idea. I mean just look at this thread. People say alternately glimmer is dead followed by glimmer is the only viable option.
The spec plays like live just with low haste. You HS on CD, spam CS, hope for IoL procs, filler with holypower Spenders or HL/FoL. Mana is more of an issue, but as long as you don't spam FoL/HL you will be perfectly fine. If you spam Chain Heal on a shaman for a minute you are oom, too.
I hated the idea of hpower for hpalas as well, but it's really no issue. Obviously we are no longer 20%+ stronger than any other healer, but that was to be expected.
I'll do another nhc clear without glimmer and crusader's might but with beacon and hammer to see how that feels.